{"title":"Packers and Shims","description":"","products":[{"product_id":"flat-packers-1-0-x-28mm-green-bag","title":"Flat Packers 1.0 x 28mm Green (100\/Bag)","description":"\u003ch2\u003eProduct Overview\u003c\/h2\u003e\u003cp\u003eFlat Packers with a 1mm thickness and 28mm width. Colour‑coded polypropylene shim for precision positioning of window and door frames. \u003cbr\u003e\u003cbr\u003eThe flat, rigid faces distribute load evenly to maintain accurate alignment during installation. Made from moisture-proof, non-corroding polypropylene for long-term stability in timber, uPVC, and aluminium frames.\u003cbr\u003e\u003cbr\u003eChamfer-free edges ensure maximum surface contact beneath screw heads and frame feet, while the non-staining material protects the substrate’s appearance.\u003cbr\u003e\u003cbr\u003e\u003c\/p\u003e\u003ch2\u003eFeatures \u0026amp; Benefits\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eColour identification\u003c\/strong\u003e: Green body provides fast size recognition on site and reduces selection errors in mixed trays. \u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLoad stability\u003c\/strong\u003e: Rigid polypropylene gives stable support under typical frame screw clamping without crushing, maintaining alignment. \u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMoisture and rot resistance\u003c\/strong\u003e: Non‑absorbent plastic will not swell, rot or corrode in wet openings or fresh plaster. \u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eClean seating\u003c\/strong\u003e: Smooth, burr‑free faces help achieve full contact for reliable load spreading beneath frame fixings. \u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStackable use\u003c\/strong\u003e: Uniform geometry allows stacking with other packers to build precise builds without rocking. \u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSubstrate compatibility\u003c\/strong\u003e: Safe for timber, masonry, concrete and metal frames; electrically non‑conductive. \u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSize\u003c\/strong\u003e: 1mm thickness × 28mm width - suited to fine shimming, micro‑adjustments and tight gaps.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\u003ch2\u003eApplications\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eWindow frame setting\u003c\/strong\u003e: Establish plumb, level and square before fixing. \u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDoor frame installation\u003c\/strong\u003e: Shim hinge and strike sides for precise reveals. \u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePartitioning and stud work\u003c\/strong\u003e: Pack track and studs to true lines prior to boarding. \u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eJoinery and cabinetry\u003c\/strong\u003e: Fine adjustment under sills, casings and carcasses. \u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCladding and battening\u003c\/strong\u003e: Space battens off substrates for drainage paths.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\u003ch2\u003eInstallation Guidance\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSelect thickness\u003c\/strong\u003e: Choose packers to match the required gap and build by stacking if needed. \u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePlace for support\u003c\/strong\u003e: Position directly under frame load points and at fixings to spread pressure. \u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFix without distortion\u003c\/strong\u003e: Tighten screws to secure while avoiding excessive compression that could deflect the frame. \u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVerify alignment\u003c\/strong\u003e: Check level, plumb and diagonals; adjust with additional packers as required. \u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTrim if necessary\u003c\/strong\u003e: Flush‑cut any protruding packer edges after final fixing.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\u003ch2\u003eCompliance \u0026amp; Performance\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial specification\u003c\/strong\u003e: Colour‑coded polypropylene (PP), non‑staining and corrosion‑free for building substrates. \u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eService suitability\u003c\/strong\u003e: Intended as non‑structural spacers for alignment and load spreading under typical frame fixings. \u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEnvironmental durability\u003c\/strong\u003e: Resistant to moisture and common site contaminants; suitable for interior and sheltered exterior use. \u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eImportant note\u003c\/strong\u003e: Not a substitute for structural bearing or load‑rated shims; verify suitability with the project specification.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e","brand":"Unbranded","offers":[{"title":"1mm","offer_id":53771582275695,"sku":"8002123","price":7.18,"currency_code":"GBP","in_stock":false},{"title":"2mm","offer_id":53771582308463,"sku":"8002125","price":7.74,"currency_code":"GBP","in_stock":false},{"title":"3mm","offer_id":53771582341231,"sku":"8002127","price":8.65,"currency_code":"GBP","in_stock":false},{"title":"4mm","offer_id":53771582373999,"sku":"8002129","price":10.18,"currency_code":"GBP","in_stock":false},{"title":"5mm","offer_id":53771582406767,"sku":"8002131","price":11.12,"currency_code":"GBP","in_stock":false},{"title":"6mm","offer_id":53771582439535,"sku":"8002133","price":11.74,"currency_code":"GBP","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0739\/9784\/4591\/files\/Flat_Packers_Assorted.jpg?v=1783758899"},{"product_id":"flat-packers-1-0-x-28mm-green-box","title":"Flat Packers 1.0 x 28mm Green (1000\/Box)","description":"\u003ch2\u003eProduct Overview\u003c\/h2\u003e\u003cp\u003eFlat Packers with a 1mm thickness and 28mm width. Colour‑coded polypropylene shim for precision positioning of window and door frames. \u003cbr\u003e\u003cbr\u003eThe flat, rigid faces distribute load evenly to maintain accurate alignment during installation. Made from moisture-proof, non-corroding polypropylene for long-term stability in timber, uPVC, and aluminium frames.\u003cbr\u003e\u003cbr\u003eChamfer-free edges ensure maximum surface contact beneath screw heads and frame feet, while the non-staining material protects the substrate’s appearance.\u003cbr\u003e\u003cbr\u003e\u003c\/p\u003e\u003ch2\u003eFeatures \u0026amp; Benefits\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eColour identification\u003c\/strong\u003e: Green body provides fast size recognition on site and reduces selection errors in mixed trays. \u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLoad stability\u003c\/strong\u003e: Rigid polypropylene gives stable support under typical frame screw clamping without crushing, maintaining alignment. \u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMoisture and rot resistance\u003c\/strong\u003e: Non‑absorbent plastic will not swell, rot or corrode in wet openings or fresh plaster. \u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eClean seating\u003c\/strong\u003e: Smooth, burr‑free faces help achieve full contact for reliable load spreading beneath frame fixings. \u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStackable use\u003c\/strong\u003e: Uniform geometry allows stacking with other packers to build precise builds without rocking. \u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSubstrate compatibility\u003c\/strong\u003e: Safe for timber, masonry, concrete and metal frames; electrically non‑conductive. \u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSize\u003c\/strong\u003e: 1mm thickness × 28mm width - suited to fine shimming, micro‑adjustments and tight gaps.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\u003ch2\u003eApplications\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eWindow frame setting\u003c\/strong\u003e: Establish plumb, level and square before fixing. \u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDoor frame installation\u003c\/strong\u003e: Shim hinge and strike sides for precise reveals. \u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePartitioning and stud work\u003c\/strong\u003e: Pack track and studs to true lines prior to boarding. \u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eJoinery and cabinetry\u003c\/strong\u003e: Fine adjustment under sills, casings and carcasses. \u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCladding and battening\u003c\/strong\u003e: Space battens off substrates for drainage paths.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\u003ch2\u003eInstallation Guidance\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSelect thickness\u003c\/strong\u003e: Choose packers to match the required gap and build by stacking if needed. \u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePlace for support\u003c\/strong\u003e: Position directly under frame load points and at fixings to spread pressure. \u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFix without distortion\u003c\/strong\u003e: Tighten screws to secure while avoiding excessive compression that could deflect the frame. \u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVerify alignment\u003c\/strong\u003e: Check level, plumb and diagonals; adjust with additional packers as required. \u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTrim if necessary\u003c\/strong\u003e: Flush‑cut any protruding packer edges after final fixing.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\u003ch2\u003eCompliance \u0026amp; Performance\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial specification\u003c\/strong\u003e: Colour‑coded polypropylene (PP), non‑staining and corrosion‑free for building substrates. \u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eService suitability\u003c\/strong\u003e: Intended as non‑structural spacers for alignment and load spreading under typical frame fixings. \u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEnvironmental durability\u003c\/strong\u003e: Resistant to moisture and common site contaminants; suitable for interior and sheltered exterior use. \u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eImportant note\u003c\/strong\u003e: Not a substitute for structural bearing or load‑rated shims; verify suitability with the project specification.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e","brand":"Unbranded","offers":[{"title":"1mm","offer_id":53771582505071,"sku":"8002124","price":71.66,"currency_code":"GBP","in_stock":false},{"title":"2mm","offer_id":53771582537839,"sku":"8002126","price":80.1,"currency_code":"GBP","in_stock":false},{"title":"3mm","offer_id":53771582570607,"sku":"8002128","price":90.25,"currency_code":"GBP","in_stock":false},{"title":"4mm","offer_id":53771582603375,"sku":"8002130","price":104.76,"currency_code":"GBP","in_stock":false},{"title":"5mm","offer_id":53771582636143,"sku":"8002132","price":119.71,"currency_code":"GBP","in_stock":false},{"title":"6mm","offer_id":53771582668911,"sku":"8002134","price":124.46,"currency_code":"GBP","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0739\/9784\/4591\/files\/Flat_Packers_Assorted_fae0672f-ef7f-499d-9eab-90db8b6a969d.jpg?v=1783758900"},{"product_id":"flat-packers-1-0-x-32mm-green-box","title":"Flat Packers 1.0 x 32mm Green (1000\/Box)","description":"\u003ch2\u003eProduct Overview\u003c\/h2\u003e\u003cp\u003eFlat Packers with a 1mm thickness and 32mm width. Colour‑coded polypropylene shim for precision positioning of window and door frames. \u003cbr\u003e\u003cbr\u003eThe flat, rigid faces distribute load evenly to maintain accurate alignment during installation. Made from moisture-proof, non-corroding polypropylene for long-term stability in timber, uPVC, and aluminium frames.\u003cbr\u003e\u003cbr\u003eChamfer-free edges ensure maximum surface contact beneath screw heads and frame feet, while the non-staining material protects the substrate’s appearance.\u003cbr\u003e\u003cbr\u003e\u003c\/p\u003e\u003ch2\u003eFeatures \u0026amp; Benefits\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eColour identification\u003c\/strong\u003e: Green body provides fast size recognition on site and reduces selection errors in mixed trays. \u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLoad stability\u003c\/strong\u003e: Rigid polypropylene gives stable support under typical frame screw clamping without crushing, maintaining alignment. \u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMoisture and rot resistance\u003c\/strong\u003e: Non‑absorbent plastic will not swell, rot or corrode in wet openings or fresh plaster. \u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eClean seating\u003c\/strong\u003e: Smooth, burr‑free faces help achieve full contact for reliable load spreading beneath frame fixings. \u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStackable use\u003c\/strong\u003e: Uniform geometry allows stacking with other packers to build precise builds without rocking. \u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSubstrate compatibility\u003c\/strong\u003e: Safe for timber, masonry, concrete and metal frames; electrically non‑conductive. \u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSize\u003c\/strong\u003e: 1mm thickness × 32mm width - suited to fine shimming, micro‑adjustments and tight gaps.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\u003ch2\u003eApplications\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eWindow frame setting\u003c\/strong\u003e: Establish plumb, level and square before fixing. \u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDoor frame installation\u003c\/strong\u003e: Shim hinge and strike sides for precise reveals. \u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePartitioning and stud work\u003c\/strong\u003e: Pack track and studs to true lines prior to boarding. \u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eJoinery and cabinetry\u003c\/strong\u003e: Fine adjustment under sills, casings and carcasses. \u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCladding and battening\u003c\/strong\u003e: Space battens off substrates for drainage paths.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\u003ch2\u003eInstallation Guidance\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSelect thickness\u003c\/strong\u003e: Choose packers to match the required gap and build by stacking if needed. \u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePlace for support\u003c\/strong\u003e: Position directly under frame load points and at fixings to spread pressure. \u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFix without distortion\u003c\/strong\u003e: Tighten screws to secure while avoiding excessive compression that could deflect the frame. \u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVerify alignment\u003c\/strong\u003e: Check level, plumb and diagonals; adjust with additional packers as required. \u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTrim if necessary\u003c\/strong\u003e: Flush‑cut any protruding packer edges after final fixing.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\u003ch2\u003eCompliance \u0026amp; Performance\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial specification\u003c\/strong\u003e: Colour‑coded polypropylene (PP), non‑staining and corrosion‑free for building substrates. \u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eService suitability\u003c\/strong\u003e: Intended as non‑structural spacers for alignment and load spreading under typical frame fixings. \u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEnvironmental durability\u003c\/strong\u003e: Resistant to moisture and common site contaminants; suitable for interior and sheltered exterior use. \u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eImportant note\u003c\/strong\u003e: Not a substitute for structural bearing or load‑rated shims; verify suitability with the project specification.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e","brand":"Unbranded","offers":[{"title":"1mm","offer_id":53771582734447,"sku":"8002138","price":91.91,"currency_code":"GBP","in_stock":false},{"title":"2mm","offer_id":53771582767215,"sku":"8002139","price":94.28,"currency_code":"GBP","in_stock":false},{"title":"3mm","offer_id":53771582799983,"sku":"8002140","price":79.2,"currency_code":"GBP","in_stock":false},{"title":"4mm","offer_id":53771582832751,"sku":"8002141","price":90.28,"currency_code":"GBP","in_stock":false},{"title":"5mm","offer_id":53771582865519,"sku":"8002142","price":100.84,"currency_code":"GBP","in_stock":false},{"title":"6mm","offer_id":53771582898287,"sku":"8002143","price":111.49,"currency_code":"GBP","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0739\/9784\/4591\/files\/Flat_Packers_Assorted_d354d32a-bdbc-4b71-af20-127c7eb01f82.jpg?v=1783758901"},{"product_id":"flat-packers-mixed-pack-28mm-bag","title":"Flat Packers Mixed Pack 28mm (100\/Bag)","description":"\u003ch2\u003eProduct Overview\u003c\/h2\u003e\u003cp\u003eFlat Packers in a mixed thickness assortment and 28mm width. Colour‑coded polypropylene shim for precision positioning of window and door frames. \u003cbr\u003e\u003cbr\u003eThe flat, rigid faces distribute load evenly to maintain accurate alignment during installation. Made from moisture-proof, non-corroding polypropylene for long-term stability in timber, uPVC, and aluminium frames.\u003cbr\u003e\u003cbr\u003eChamfer-free edges ensure maximum surface contact beneath screw heads and frame feet, while the non-staining material protects the substrate’s appearance.\u003cbr\u003e\u003cbr\u003e\u003c\/p\u003e\u003ch2\u003eFeatures \u0026amp; Benefits\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eColour identification\u003c\/strong\u003e: Mixed colours provide instant recognition of individual thicknesses within the pack.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLoad stability\u003c\/strong\u003e: Rigid polypropylene gives stable support under typical frame screw clamping without crushing, maintaining alignment. \u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMoisture and rot resistance\u003c\/strong\u003e: Non‑absorbent plastic will not swell, rot or corrode in wet openings or fresh plaster. \u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eClean seating\u003c\/strong\u003e: Smooth, burr‑free faces help achieve full contact for reliable load spreading beneath frame fixings. \u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStackable use\u003c\/strong\u003e: Uniform geometry allows stacking with other packers to build precise builds without rocking. \u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSubstrate compatibility\u003c\/strong\u003e: Safe for timber, masonry, concrete and metal frames; electrically non‑conductive. \u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSize\u003c\/strong\u003e: Mixed thickness × 28mm width - versatile selection for varied gaps and progressive adjustment.\u003cbr\u003e\u003cbr\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eApplications\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eWindow frame setting\u003c\/strong\u003e: Establish plumb, level and square before fixing. \u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDoor frame installation\u003c\/strong\u003e: Shim hinge and strike sides for precise reveals. \u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePartitioning and stud work\u003c\/strong\u003e: Pack track and studs to true lines prior to boarding. \u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eJoinery and cabinetry\u003c\/strong\u003e: Fine adjustment under sills, casings and carcasses. \u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCladding and battening\u003c\/strong\u003e: Space battens off substrates for drainage paths.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\u003ch2\u003eInstallation Guidance\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSelect thickness\u003c\/strong\u003e: Choose packers to match the required gap and build by stacking if needed. \u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePlace for support\u003c\/strong\u003e: Position directly under frame load points and at fixings to spread pressure. \u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFix without distortion\u003c\/strong\u003e: Tighten screws to secure while avoiding excessive compression that could deflect the frame. \u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVerify alignment\u003c\/strong\u003e: Check level, plumb and diagonals; adjust with additional packers as required. \u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTrim if necessary\u003c\/strong\u003e: Flush‑cut any protruding packer edges after final fixing.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\u003ch2\u003eCompliance \u0026amp; Performance\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial specification\u003c\/strong\u003e: Colour‑coded polypropylene (PP), non‑staining and corrosion‑free for building substrates. \u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eService suitability\u003c\/strong\u003e: Intended as non‑structural spacers for alignment and load spreading under typical frame fixings. \u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEnvironmental durability\u003c\/strong\u003e: Resistant to moisture and common site contaminants; suitable for interior and sheltered exterior use. \u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eImportant note\u003c\/strong\u003e: Not a substitute for structural bearing or load‑rated shims; verify suitability with the project specification.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e","brand":"Unbranded","offers":[{"title":"Default Title","offer_id":53771582931055,"sku":"8002135","price":9.59,"currency_code":"GBP","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0739\/9784\/4591\/files\/Flat_Packers_Assorted_aa14191a-54fa-42a5-98a8-9e2ad946f4cc.jpg?v=1783758902"},{"product_id":"flat-packers-mixed-pack-32mm-bag","title":"Flat Packers Mixed Pack 32mm (100\/Bag)","description":"\u003ch2\u003eProduct Overview\u003c\/h2\u003e\u003cp\u003eFlat Packers in a mixed thickness assortment and 32mm width. Colour‑coded polypropylene shim for precision positioning of window and door frames. \u003cbr\u003e\u003cbr\u003eThe flat, rigid faces distribute load evenly to maintain accurate alignment during installation. Made from moisture-proof, non-corroding polypropylene for long-term stability in timber, uPVC, and aluminium frames.\u003cbr\u003e\u003cbr\u003eChamfer-free edges ensure maximum surface contact beneath screw heads and frame feet, while the non-staining material protects the substrate’s appearance.\u003cbr\u003e\u003cbr\u003e\u003c\/p\u003e\u003ch2\u003eFeatures \u0026amp; Benefits\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eColour identification\u003c\/strong\u003e: Mixed colours provide instant recognition of individual thicknesses within the pack.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLoad stability\u003c\/strong\u003e: Rigid polypropylene gives stable support under typical frame screw clamping without crushing, maintaining alignment. \u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMoisture and rot resistance\u003c\/strong\u003e: Non‑absorbent plastic will not swell, rot or corrode in wet openings or fresh plaster. \u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eClean seating\u003c\/strong\u003e: Smooth, burr‑free faces help achieve full contact for reliable load spreading beneath frame fixings. \u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStackable use\u003c\/strong\u003e: Uniform geometry allows stacking with other packers to build precise builds without rocking. \u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSubstrate compatibility\u003c\/strong\u003e: Safe for timber, masonry, concrete and metal frames; electrically non‑conductive. \u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSize\u003c\/strong\u003e: Mixed thickness × 32mm width - versatile selection for varied gaps and progressive adjustment.\u003cbr\u003e\u003cbr\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eApplications\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eWindow frame setting\u003c\/strong\u003e: Establish plumb, level and square before fixing. \u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDoor frame installation\u003c\/strong\u003e: Shim hinge and strike sides for precise reveals. \u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePartitioning and stud work\u003c\/strong\u003e: Pack track and studs to true lines prior to boarding. \u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eJoinery and cabinetry\u003c\/strong\u003e: Fine adjustment under sills, casings and carcasses. \u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCladding and battening\u003c\/strong\u003e: Space battens off substrates for drainage paths.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\u003ch2\u003eInstallation Guidance\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSelect thickness\u003c\/strong\u003e: Choose packers to match the required gap and build by stacking if needed. \u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePlace for support\u003c\/strong\u003e: Position directly under frame load points and at fixings to spread pressure. \u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFix without distortion\u003c\/strong\u003e: Tighten screws to secure while avoiding excessive compression that could deflect the frame. \u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVerify alignment\u003c\/strong\u003e: Check level, plumb and diagonals; adjust with additional packers as required. \u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTrim if necessary\u003c\/strong\u003e: Flush‑cut any protruding packer edges after final fixing.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\u003ch2\u003eCompliance \u0026amp; Performance\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial specification\u003c\/strong\u003e: Colour‑coded polypropylene (PP), non‑staining and corrosion‑free for building substrates. \u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eService suitability\u003c\/strong\u003e: Intended as non‑structural spacers for alignment and load spreading under typical frame fixings. \u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEnvironmental durability\u003c\/strong\u003e: Resistant to moisture and common site contaminants; suitable for interior and sheltered exterior use. \u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eImportant note\u003c\/strong\u003e: Not a substitute for structural bearing or load‑rated shims; verify suitability with the project specification.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e","brand":"Unbranded","offers":[{"title":"Default Title","offer_id":53771582963823,"sku":"8002137","price":12.52,"currency_code":"GBP","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0739\/9784\/4591\/files\/Flat_Packers_Assorted_5694326d-0dcf-4f5c-9caa-0f7c0f2ae0cb.jpg?v=1783758903"},{"product_id":"u-packer-10mm-grey-bag","title":"U Packer 10mm Grey (50\/Bag)","description":"\u003ch2\u003eProduct Overview\u003c\/h2\u003e\u003cp\u003eGrey U Packers for the precise positioning of window and door frames. They can be easily slid around existing fixings without removing screws, helping to maintain accurate datum and line during set-out.\u003cbr\u003e\u003cbr\u003eEach packer is colour-coded for quick on-site identification. The rigid, non-compressible polymer provides a stable bearing under typical frame loads, while the internal comb design ensures a secure grip that resists movement during tightening and final fixing.\u003cbr\u003e\u003cbr\u003eThe material is non-absorbent and non-staining, ensuring a clean, professional installation against both frames and substrates. These U shaped shims reduce stacks and speeds set-out on variable bases.\u003cbr\u003e\u003cbr\u003eUsed singly for confident pack-off or combined with finer sizes to tune level and reveal, they maintain consistent plane across the bearing face to protect frame profiles and finishes.\u003cbr\u003e\u003cbr\u003eThe 10mm thickness is suited to extra-large gaps or specialist fitting where a significant correction or stand-off is required.\u003c\/p\u003e\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\u003ch2\u003eFeatures \u0026amp; Benefits\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eColour coding\u003c\/strong\u003e: Grey body provides quick visual confirmation of size in mixed sets and on busy sites. \u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eU-shaped profile\u003c\/strong\u003e: Slides around screws and anchors without removal to speed placement and adjustment. \u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInternal comb\u003c\/strong\u003e: Interlocks with substrate or fastener line to resist slip and creep during tightening. \u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNon-compressible polymer\u003c\/strong\u003e: Maintains level and square under typical frame and trim loads without crushing. \u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMoisture and rot resistance\u003c\/strong\u003e: Non-absorbent material suitable for interior and exterior use. \u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eClean edges and flat faces\u003c\/strong\u003e: Distributes bearing evenly to protect frame finishes and substrates.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eReusable during set-out\u003c\/strong\u003e: Can be repositioned during dry-fit and left in place for final fix.  \u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThickness\u003c\/strong\u003e: Suited to extra-large gaps or specialist stand-off with minimal stacking; 10mm.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\u003ch2\u003eApplications\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eDoor frames and portals\u003c\/strong\u003e: Establishing substantial stand-off where substrates vary greatly.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSubframes and carriers\u003c\/strong\u003e: Packing mounting rails to a fixed datum over irregular bases. \u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHeavy hardware seating\u003c\/strong\u003e: Backing sizeable plates, rails, and brackets needing strong bearing.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThreshold and ramp interfaces\u003c\/strong\u003e: Creating consistent levels where significant build is required.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFaçade and cladding prep\u003c\/strong\u003e: Levelling over coarse masonry or uneven concrete with large offsets.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\u003ch2\u003eInstallation Guidance\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eAssess substrate\u003c\/strong\u003e: Ensure bearing areas are sound, clean, and free from debris before packing. \u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDry fit and level\u003c\/strong\u003e: Position packers at known load points to establish line, level, and plumb. \u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSlide around fixings\u003c\/strong\u003e: Use the U-slot to place packers without removing screws or anchors. \u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStack with control\u003c\/strong\u003e: Combine sizes only as required, keeping full face-to-face contact. \u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFix and check\u003c\/strong\u003e: Tighten gradually and re-check plumb\/level after each adjustment. \u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTrim and leave in place\u003c\/strong\u003e: Do not remove after fixing; packers form part of the final assembly.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\u003ch2\u003eCompliance \u0026amp; Performance\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial\u003c\/strong\u003e: Rigid, non-compressible, non-absorbent polymer suitable for frame setting and packing.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDurability\u003c\/strong\u003e: Resistant to moisture, rot, and common site contaminants; non-staining against most frames. \u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTemperature stability\u003c\/strong\u003e: Remains reliable across typical site temperature ranges during installation.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUse limitation\u003c\/strong\u003e: Intended for setting and packing; not a structural load-bearing shim. \u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eImportant note\u003c\/strong\u003e: Always maintain full bearing and verify the load path; wear appropriate PPE during installation.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e","brand":"Unbranded","offers":[{"title":"10mm","offer_id":53771583062127,"sku":"8002156","price":9.78,"currency_code":"GBP","in_stock":false},{"title":"1mm","offer_id":53771583094895,"sku":"8002144","price":6.53,"currency_code":"GBP","in_stock":false},{"title":"2mm","offer_id":53771583127663,"sku":"8002146","price":7.02,"currency_code":"GBP","in_stock":false},{"title":"3mm","offer_id":53771583160431,"sku":"8002148","price":7.56,"currency_code":"GBP","in_stock":false},{"title":"4mm","offer_id":53771583193199,"sku":"8002150","price":8.92,"currency_code":"GBP","in_stock":false},{"title":"5mm","offer_id":53771583225967,"sku":"8002152","price":10.15,"currency_code":"GBP","in_stock":false},{"title":"6mm","offer_id":53771583258735,"sku":"8002154","price":11.05,"currency_code":"GBP","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0739\/9784\/4591\/files\/10mm_grey_u_packer.jpg?v=1783758905"},{"product_id":"u-packer-10mm-grey-box","title":"U Packer 10mm Grey (500\/Box)","description":"\u003ch2\u003eProduct Overview\u003c\/h2\u003e\u003cp\u003eGrey U Packers for the precise positioning of window and door frames. They can be easily slid around existing fixings without removing screws, helping to maintain accurate datum and line during set-out.\u003cbr\u003e\u003cbr\u003eEach packer is colour-coded for quick on-site identification. The rigid, non-compressible polymer provides a stable bearing under typical frame loads, while the internal comb design ensures a secure grip that resists movement during tightening and final fixing.\u003cbr\u003e\u003cbr\u003eThe material is non-absorbent and non-staining, ensuring a clean, professional installation against both frames and substrates. These U shaped shims reduce stacks and speeds set-out on variable bases.\u003cbr\u003e\u003cbr\u003eUsed singly for confident pack-off or combined with finer sizes to tune level and reveal, they maintain consistent plane across the bearing face to protect frame profiles and finishes.\u003cbr\u003e\u003cbr\u003eThe 10mm thickness is suited to extra-large gaps or specialist fitting where a significant correction or stand-off is required.\u003c\/p\u003e\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\u003ch2\u003eFeatures \u0026amp; Benefits\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eColour coding\u003c\/strong\u003e: Grey body provides quick visual confirmation of size in mixed sets and on busy sites. \u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eU-shaped profile\u003c\/strong\u003e: Slides around screws and anchors without removal to speed placement and adjustment. \u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInternal comb\u003c\/strong\u003e: Interlocks with substrate or fastener line to resist slip and creep during tightening. \u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNon-compressible polymer\u003c\/strong\u003e: Maintains level and square under typical frame and trim loads without crushing. \u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMoisture and rot resistance\u003c\/strong\u003e: Non-absorbent material suitable for interior and exterior use. \u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eClean edges and flat faces\u003c\/strong\u003e: Distributes bearing evenly to protect frame finishes and substrates.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eReusable during set-out\u003c\/strong\u003e: Can be repositioned during dry-fit and left in place for final fix.  \u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThickness\u003c\/strong\u003e: Suited to extra-large gaps or specialist stand-off with minimal stacking; 10mm.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\u003ch2\u003eApplications\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eDoor frames and portals\u003c\/strong\u003e: Establishing substantial stand-off where substrates vary greatly.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSubframes and carriers\u003c\/strong\u003e: Packing mounting rails to a fixed datum over irregular bases. \u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHeavy hardware seating\u003c\/strong\u003e: Backing sizeable plates, rails, and brackets needing strong bearing.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThreshold and ramp interfaces\u003c\/strong\u003e: Creating consistent levels where significant build is required.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFaçade and cladding prep\u003c\/strong\u003e: Levelling over coarse masonry or uneven concrete with large offsets.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\u003ch2\u003eInstallation Guidance\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eAssess substrate\u003c\/strong\u003e: Ensure bearing areas are sound, clean, and free from debris before packing. \u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDry fit and level\u003c\/strong\u003e: Position packers at known load points to establish line, level, and plumb. \u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSlide around fixings\u003c\/strong\u003e: Use the U-slot to place packers without removing screws or anchors. \u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStack with control\u003c\/strong\u003e: Combine sizes only as required, keeping full face-to-face contact. \u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFix and check\u003c\/strong\u003e: Tighten gradually and re-check plumb\/level after each adjustment. \u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTrim and leave in place\u003c\/strong\u003e: Do not remove after fixing; packers form part of the final assembly.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\u003ch2\u003eCompliance \u0026amp; Performance\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial\u003c\/strong\u003e: Rigid, non-compressible, non-absorbent polymer suitable for frame setting and packing.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDurability\u003c\/strong\u003e: Resistant to moisture, rot, and common site contaminants; non-staining against most frames. \u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTemperature stability\u003c\/strong\u003e: Remains reliable across typical site temperature ranges during installation.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUse limitation\u003c\/strong\u003e: Intended for setting and packing; not a structural load-bearing shim. \u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eImportant note\u003c\/strong\u003e: Always maintain full bearing and verify the load path; wear appropriate PPE during installation.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e","brand":"Unbranded","offers":[{"title":"10mm","offer_id":53771583291503,"sku":"8002157","price":73.24,"currency_code":"GBP","in_stock":false},{"title":"1mm","offer_id":53771583324271,"sku":"8002145","price":48.37,"currency_code":"GBP","in_stock":false},{"title":"2mm","offer_id":53771583357039,"sku":"8002147","price":52.58,"currency_code":"GBP","in_stock":false},{"title":"3mm","offer_id":53771583389807,"sku":"8002149","price":57.47,"currency_code":"GBP","in_stock":false},{"title":"4mm","offer_id":53771583422575,"sku":"8002151","price":66.85,"currency_code":"GBP","in_stock":false},{"title":"5mm","offer_id":53771583455343,"sku":"8002153","price":79.51,"currency_code":"GBP","in_stock":false},{"title":"6mm","offer_id":53771583488111,"sku":"8002155","price":86.29,"currency_code":"GBP","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0739\/9784\/4591\/files\/10mm_grey_u_packer_e96b93b2-fc11-42f5-a657-fad4a92372e4.jpg?v=1783758906"},{"product_id":"u-packer-mixed-bag-70-pcs","title":"U Packer Mixed Bag (70\/Box)","description":"\u003ch2\u003eProduct Overview\u003c\/h2\u003e\u003cp\u003eU Packers Mixed Bag of assorted thicknesses from 1mm to 10mm. They can be easily slid around existing fixings without removing screws, helping to maintain accurate datum and line during set-out.\u003cbr\u003e\u003cbr\u003eEach packer is colour-coded for quick on-site identification. The rigid, non-compressible polymer provides a stable bearing under typical frame loads, while the internal comb design ensures a secure grip that resists movement during tightening and final fixing.\u003cbr\u003e\u003cbr\u003eThe material is non-absorbent and non-staining, ensuring a clean, professional installation against both frames and substrates. These U shaped shims support staged builds from hairline corrections to substantial pack-off. \u003cbr\u003e\u003cbr\u003eUsed singly for confident pack-off or combined with finer sizes to tune level and reveal, they maintain consistent plane across the bearing face to protect frame profiles and finishes.\u003cbr\u003e\u003cbr\u003eMixed thicknesses suited to first-fix and finishing across varied tasks.\u003c\/p\u003e\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\u003ch2\u003eFeatures \u0026amp; Benefits\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eColour coding\u003c\/strong\u003e: Grey body provides quick visual confirmation of size in mixed sets and on busy sites. \u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eU-shaped profile\u003c\/strong\u003e: Slides around screws and anchors without removal to speed placement and adjustment. \u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInternal comb\u003c\/strong\u003e: Interlocks with substrate or fastener line to resist slip and creep during tightening. \u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNon-compressible polymer\u003c\/strong\u003e: Maintains level and square under typical frame and trim loads without crushing. \u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMoisture and rot resistance\u003c\/strong\u003e: Non-absorbent material suitable for interior and exterior use. \u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eClean edges and flat faces\u003c\/strong\u003e: Distributes bearing evenly to protect frame finishes and substrates.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eReusable during set-out\u003c\/strong\u003e: Can be repositioned during dry-fit and left in place for final fix.  \u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThickness range\u003c\/strong\u003e: Covers precision shimming to heavy pack-off in one set; 1–10mm.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\u003ch2\u003eApplications\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eWindow and door frame setting\u003c\/strong\u003e: From fine reveal tuning to substantial pack-off with minimal pieces.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBatten and subframe alignment\u003c\/strong\u003e: Establishing datum over variable substrates across a run.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHardware seating\u003c\/strong\u003e: Backing light to heavier brackets and plates with matched thickness. \u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThresholds and sills\u003c\/strong\u003e: Eliminating rock and creating consistent fall across varying levels. \u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGeneral fit-out\u003c\/strong\u003e: Rapid problem-solving across joinery, cladding prep, and finishing.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\u003ch2\u003eInstallation Guidance\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eAssess substrate\u003c\/strong\u003e: Ensure bearing areas are sound, clean, and free from debris before packing. \u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDry fit and level\u003c\/strong\u003e: Position packers at known load points to establish line, level, and plumb. \u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSlide around fixings\u003c\/strong\u003e: Use the U-slot to place packers without removing screws or anchors. \u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStack with control\u003c\/strong\u003e: Combine sizes only as required, keeping full face-to-face contact. \u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFix and check\u003c\/strong\u003e: Tighten gradually and re-check plumb\/level after each adjustment. \u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTrim and leave in place\u003c\/strong\u003e: Do not remove after fixing; packers form part of the final assembly.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\u003ch2\u003eCompliance \u0026amp; Performance\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial\u003c\/strong\u003e: Rigid, non-compressible, non-absorbent polymer suitable for frame setting and packing.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDurability\u003c\/strong\u003e: Resistant to moisture, rot, and common site contaminants; non-staining against most frames. \u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTemperature stability\u003c\/strong\u003e: Remains reliable across typical site temperature ranges during installation.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUse limitation\u003c\/strong\u003e: Intended for setting and packing; not a structural load-bearing shim. \u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eImportant note\u003c\/strong\u003e: Always maintain full bearing and verify the load path; wear appropriate PPE during installation.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e","brand":"Unbranded","offers":[{"title":"Default Title","offer_id":53771583553647,"sku":"8002158","price":13.02,"currency_code":"GBP","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0739\/9784\/4591\/files\/mixed_bag_of_u_packers.jpg?v=1783758907"},{"product_id":"wedge-packer-bag","title":"Wedge Packer Bag (50\/Bag)","description":"\u003ch2\u003eProduct Overview\u003c\/h2\u003e\u003cp\u003eWedge Packers for precise, adjustable positioning of window and door frames. Each pair of tapered, interlocking wedges allows fine tuning of level and plumb without removing fixings, offering an adjustment range of 9-14mm for accurate on-site alignment.\u003cbr\u003e\u003cbr\u003eSerrated faces lock together securely to prevent slippage under tightening, while the rigid, non-compressible polymer delivers stable bearing and controlled lift with light taps. The material is non-absorbent and non-staining, ensuring clean, durable contact with frames and substrates.\u003cbr\u003e\u003cbr\u003eThese packers can be reused during set-out and left in place after final fixing. They are ideal for correcting uneven bases where flat packing is impractical, reducing the need for multiple shims while maintaining full bearing across the contact area.\u003cbr\u003e\u003cbr\u003eThey are optimised for both first-fix and finishing stages, enabling quick, precise adjustment to achieve a true and consistent datum.\u003cbr\u003e\u003cbr\u003e\u003c\/p\u003e\u003ch2\u003eFeatures \u0026amp; Benefits\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eOpposing wedge action\u003c\/strong\u003e: Two wedges work together to raise or lower with small taps for precise control. \u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSerrated, non-slip faces\u003c\/strong\u003e: Teeth interlock to resist creep during tightening and service. \u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRigid polymer construction\u003c\/strong\u003e: Maintains level and squareness under typical frame loads without crushing. \u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNon-absorbent and non-staining\u003c\/strong\u003e: Suitable against common frame finishes and substrates indoors or out. \u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eReusable during set-out\u003c\/strong\u003e: Insert, adjust, and lock; can be left in the final assembly. \u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eReduced pack count\u003c\/strong\u003e: Replaces multiple flat shims where variable lift is required. \u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAdjustment range\u003c\/strong\u003e: Used in pairs to level and fill variable gaps for accurate frame setting; 9–14mm.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\u003ch2\u003eApplications\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eWindow and door frame alignment\u003c\/strong\u003e: Establishing plumb, level, and square when bases are uneven. \u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThreshold and sill correction\u003c\/strong\u003e: Taking up variation where flat shims would over-stack. \u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSubframe and liner installation\u003c\/strong\u003e: Fine tuning reveals and clearances during fit-out. \u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGeneral joinery pack-off\u003c\/strong\u003e: Controlled lift for cabinets, fascias, and trims where incremental adjustment is needed.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\u003ch2\u003eInstallation Guidance\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePrepare bearing surfaces\u003c\/strong\u003e: Ensure contact areas are sound and free from debris. \u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePlace in opposing pairs\u003c\/strong\u003e: Insert wedges teeth-to-teeth with serrations engaged and full-face contact. \u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAdjust incrementally\u003c\/strong\u003e: Tap lightly to raise or slide back to lower until datum is achieved. \u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePosition at load paths\u003c\/strong\u003e: Locate near fix points and corners to support frame loads evenly. \u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTighten and verify\u003c\/strong\u003e: Secure fixings gradually, checking plumb and level after each adjustment. \u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLeave in place\u003c\/strong\u003e: Do not remove after fixing; trim any protrusion flush as required.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\u003ch2\u003eCompliance \u0026amp; Performance\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial\u003c\/strong\u003e: Rigid, non-compressible, non-absorbent polymer suitable for setting and packing tasks.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePerformance\u003c\/strong\u003e: Serrated faces resist slip; maintains bearing under typical frame loads within stated adjustment range. \u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTemperature stability\u003c\/strong\u003e: Reliable across common site temperature conditions during installation. \u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUse limitation\u003c\/strong\u003e: Adjustment device for fit-out; not a structural load-bearing shim. \u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eImportant note\u003c\/strong\u003e: Avoid over-wedging that could bow frames; maintain full bearing and wear appropriate PPE during installation.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e","brand":"Unbranded","offers":[{"title":"Default Title","offer_id":53771583586415,"sku":"8002159","price":14.4,"currency_code":"GBP","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0739\/9784\/4591\/files\/Wedge_Packers_-_Photo.jpg?v=1783758908"},{"product_id":"wedge-packer-box","title":"Wedge Packer Box (1000\/Box)","description":"\u003ch2\u003eProduct Overview\u003c\/h2\u003e\u003cp\u003eWedge Packers for precise, adjustable positioning of window and door frames. Each pair of tapered, interlocking wedges allows fine tuning of level and plumb without removing fixings, offering an adjustment range of 9-14mm for accurate on-site alignment.\u003cbr\u003e\u003cbr\u003eSerrated faces lock together securely to prevent slippage under tightening, while the rigid, non-compressible polymer delivers stable bearing and controlled lift with light taps. The material is non-absorbent and non-staining, ensuring clean, durable contact with frames and substrates.\u003cbr\u003e\u003cbr\u003eThese packers can be reused during set-out and left in place after final fixing. They are ideal for correcting uneven bases where flat packing is impractical, reducing the need for multiple shims while maintaining full bearing across the contact area.\u003cbr\u003e\u003cbr\u003eThey are optimised for both first-fix and finishing stages, enabling quick, precise adjustment to achieve a true and consistent datum.\u003cbr\u003e\u003cbr\u003e\u003c\/p\u003e\u003ch2\u003eFeatures \u0026amp; Benefits\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eOpposing wedge action\u003c\/strong\u003e: Two wedges work together to raise or lower with small taps for precise control. \u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSerrated, non-slip faces\u003c\/strong\u003e: Teeth interlock to resist creep during tightening and service. \u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRigid polymer construction\u003c\/strong\u003e: Maintains level and squareness under typical frame loads without crushing. \u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNon-absorbent and non-staining\u003c\/strong\u003e: Suitable against common frame finishes and substrates indoors or out. \u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eReusable during set-out\u003c\/strong\u003e: Insert, adjust, and lock; can be left in the final assembly. \u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eReduced pack count\u003c\/strong\u003e: Replaces multiple flat shims where variable lift is required. \u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAdjustment range\u003c\/strong\u003e: Used in pairs to level and fill variable gaps for accurate frame setting; 9–14mm.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\u003ch2\u003eApplications\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eWindow and door frame alignment\u003c\/strong\u003e: Establishing plumb, level, and square when bases are uneven. \u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThreshold and sill correction\u003c\/strong\u003e: Taking up variation where flat shims would over-stack. \u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSubframe and liner installation\u003c\/strong\u003e: Fine tuning reveals and clearances during fit-out. \u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGeneral joinery pack-off\u003c\/strong\u003e: Controlled lift for cabinets, fascias, and trims where incremental adjustment is needed.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\u003ch2\u003eInstallation Guidance\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePrepare bearing surfaces\u003c\/strong\u003e: Ensure contact areas are sound and free from debris. \u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePlace in opposing pairs\u003c\/strong\u003e: Insert wedges teeth-to-teeth with serrations engaged and full-face contact. \u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAdjust incrementally\u003c\/strong\u003e: Tap lightly to raise or slide back to lower until datum is achieved. \u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePosition at load paths\u003c\/strong\u003e: Locate near fix points and corners to support frame loads evenly. \u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTighten and verify\u003c\/strong\u003e: Secure fixings gradually, checking plumb and level after each adjustment. \u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLeave in place\u003c\/strong\u003e: Do not remove after fixing; trim any protrusion flush as required.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\u003ch2\u003eCompliance \u0026amp; Performance\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial\u003c\/strong\u003e: Rigid, non-compressible, non-absorbent polymer suitable for setting and packing tasks.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePerformance\u003c\/strong\u003e: Serrated faces resist slip; maintains bearing under typical frame loads within stated adjustment range. \u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTemperature stability\u003c\/strong\u003e: Reliable across common site temperature conditions during installation. \u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUse limitation\u003c\/strong\u003e: Adjustment device for fit-out; not a structural load-bearing shim. \u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eImportant note\u003c\/strong\u003e: Avoid over-wedging that could bow frames; maintain full bearing and wear appropriate PPE during installation.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e","brand":"Unbranded","offers":[{"title":"Default Title","offer_id":53771583651951,"sku":"8002160","price":120.0,"currency_code":"GBP","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0739\/9784\/4591\/files\/Wedge_Packers_-_Photo_e61ce00b-51c1-4555-a99d-6dd47e267f61.jpg?v=1783758909"}],"url":"https:\/\/supplyyard.co.uk\/collections\/packers-and-shims.oembed","provider":"Supply Yard","version":"1.0","type":"link"}