Category

Flat Glazing Packers

Precision-Level Shims for Professional Window & Glass Installation (1–6 mm)

Flat glazing packers provide stable, accurate support when setting glass units, aligning frames, or levelling window and door assemblies. Made from tough, non-compressible plastic, they hold their shape under load and help maintain correct sightlines without stressing seals or restricting drainage pathways.

Available in a full range of 1–6 mm thicknesses, each size follows a clear colour system so you can select the right packer instantly. Choose from single-thickness packs for repetitive jobs or assorted packs when you need multiple sizes on hand. All items are held in UK stock, dispatched quickly, and supplied with VAT invoices.

🎯 Consistent sizing

🚚 Next-day delivery options

💳 Cards · BACS

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Flat Glazing Packers – 20 mm, 2 mm thickness black.
Flat Glazing Packers – 20 mm, 6 mm thickness red.
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Flat Glazing Packers – 20 mm

Price range: £18.10 through £23.51 Exc. VAT
Select options This product has multiple variants. The options may be chosen on the product page
Flat Glazing Packers – 24 mm, 6 mm thickness red.
Flat Glazing Packers – 24 mm, 5 mm thickness blue.
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Flat Glazing Packers – 24 mm

Price range: £20.49 through £28.68 Exc. VAT
Select options This product has multiple variants. The options may be chosen on the product page
Flat Glazing Packers – 28 mm, 5 mm thickness blue.
Flat Glazing Packers – 28 mm, 6 mm thickness red.
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Flat Glazing Packers – 28 mm

Price range: £21.99 through £34.99 Exc. VAT
Select options This product has multiple variants. The options may be chosen on the product page
Slimline Glazing Packers - 9 mm.
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Slimline Glazing Packers – 9 mm

Price range: £21.99 through £23.99 Exc. VAT
Select options This product has multiple variants. The options may be chosen on the product page

🚚 Delivery: Standard, Express & Next-Day (cut-off 1 pm).

💬 Support: 9 am–6 pm (UK time) via email.

🔁 Returns: 30-day unopened packs. Simple process.

🔒 Secure: PCI-DSS payments, VAT invoices.

About Flat Glazing Packers

Flat glazing packers provide stable, repeatable spacing for IGUs and frames. Colour-coded thicknesses (typically 1–6 mm) make on-site selection quick while maintaining level, square installations. Our trade-grade polymer blend resists crushing and creep under typical loads, helping reduce callbacks from rattle, twist or sag. Choose widths like 20, 24, or 28 mm to suit your profile and use express delivery when timelines are tight.