Flat Packers 5.0 x 28mm Blue (1000/Box)
Flat packer for precise positioning of window and door frames. Colour-coded polypropylene. 5mm thickness offers firm support for wider gaps and strong fixing. Box of 1000.
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Fri 17 Oct
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Product Overview
Flat packer for precise positioning of window and door frames. Colour-coded polypropylene. 5mm thickness offers firm support for wider gaps and strong fixing. Box of 1000.
Delivery & Returns Information
How Our Delivery Works
We work with a nationwide network of trusted suppliers. As a result, items in your basket may be supplied by different suppliers and delivered separately. Where this applies, you'll see multiple delivery charges at checkout. We always aim to group products from the same supplier to keep delivery costs as low as possible.
Delivery Areas & Charges
Delivery charges listed on our website apply to mainland UK, excluding the following postcode areas: AB, CF, DD, DG, FK, KW, IV, LA, LD, LL, NP, PA, PH, SA, SY
If your delivery address falls within one of these postcode areas, we’ll be in touch before processing your order to confirm any additional delivery costs.
Please note: We do not currently offer delivery outside the UK mainland.
Standard (Nationwide) Delivery
| Screws & Fixings and Adhesives & Sealants | |
|---|---|
| ORDER VALUE | DELIVERY CHARGE |
| Under £50 | £5 ex. VAT |
| Over £50 ex. VAT | FREE |
| Insulation, Plasterboard and Drylining Products | |
| ORDER VALUE | DELIVERY CHARGE |
| Under £350 | £35 ex. VAT |
| Over £350 ex. VAT | FREE |
| Timber & Sheet, Building Materials, Joinery and Gardens & Landscaping Products | |
| ORDER VALUE | DELIVERY CHARGE |
| Under £300 | £10 ex. VAT |
| Over £300 ex. VAT | FREE |
Express Delivery
| Express Delivery - Insulation and Plasterboard & Drylining | |
|---|---|
| ORDER VALUE | DELIVERY CHARGE |
| Under £400 | £50 ex. VAT |
| Over £400 ex. VAT | £35 ex. VAT |
| Express Delivery - Timber & Sheet, Building Materials, Joinery and Gardens & Landscaping Products | |
| ORDER VALUE | DELIVERY CHARGE |
| Under £300 | £50 ex. VAT |
| Over £300 ex. VAT | £35 ex. VAT |
Returns
We offer a 30 day returns policy on any faulty products.
Key Features
- {{density_large}} Non‑structural spacers
- {{auto_awesome}} Non‑staining and corrosion‑free
- {{fitness_center}} Rigid polypropylene manufacture
- {{border_all}} For precision positioning of window and door frames
Technical Specification
| Material Type: | Polypropylene |
|---|---|
| Thickness: | 5mm |
| Width: | 28mm |
| Length: | 100mm |
| Box Quantity: | 1000 |
| Sales Unit: | Each |
| Colour: | Blue |
Product Overview
Flat Packers with a 5mm thickness and 28mm width. Colour‑coded polypropylene shim for precision positioning of window and door frames.
The 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.
Chamfer-free edges ensure maximum surface contact beneath screw heads and frame feet, while the non-staining material protects the substrate’s appearance.
Features & Benefits
- Colour identification: Blue body provides fast size recognition on site and reduces selection errors in mixed trays.
- Load stability: Rigid polypropylene gives stable support under typical frame screw clamping without crushing, maintaining alignment.
- Moisture and rot resistance: Non‑absorbent plastic will not swell, rot or corrode in wet openings or fresh plaster.
- Clean seating: Smooth, burr‑free faces help achieve full contact for reliable load spreading beneath frame fixings.
- Stackable use: Uniform geometry allows stacking with other packers to build precise builds without rocking.
- Substrate compatibility: Safe for timber, masonry, concrete and metal frames; electrically non‑conductive.
- Size: 5mm thickness × 28mm width - offers firm support for wider gaps and strong fixing.
Applications
- Window frame setting: Establish plumb, level and square before fixing.
- Door frame installation: Shim hinge and strike sides for precise reveals.
- Partitioning and stud work: Pack track and studs to true lines prior to boarding.
- Joinery and cabinetry: Fine adjustment under sills, casings and carcasses.
- Cladding and battening: Space battens off substrates for drainage paths.
Installation Guidance
- Select thickness: Choose packers to match the required gap and build by stacking if needed.
- Place for support: Position directly under frame load points and at fixings to spread pressure.
- Fix without distortion: Tighten screws to secure while avoiding excessive compression that could deflect the frame.
- Verify alignment: Check level, plumb and diagonals; adjust with additional packers as required.
- Trim if necessary: Flush‑cut any protruding packer edges after final fixing.
Compliance & Performance
- Material specification: Colour‑coded polypropylene (PP), non‑staining and corrosion‑free for building substrates.
- Service suitability: Intended as non‑structural spacers for alignment and load spreading under typical frame fixings.
- Environmental durability: Resistant to moisture and common site contaminants; suitable for interior and sheltered exterior use.
- Important note: Not a substitute for structural bearing or load‑rated shims; verify suitability with the project specification.
