UK Stock
Flat Glazing Packers
Flat Glazing Packers – Reliable, Trade-Grade Shims (1–6 mm)
Flat glazing packers are the industry standard for levelling and supporting glass units in uPVC, aluminium, and timber frames. Their rigid, non-compressible design maintains correct spacing without distorting gaskets or compromising drainage.
Our range covers 1–6 mm thicknesses with industry-recognised colour coding for quick identification on site. Choose single-size or mixed packs depending on your fitting needs. All products are stocked in the UK with VAT invoices and next-day delivery available.
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Which glazing packer should I choose?
- Flat packers – Universal for spacing and levelling — ideal for most glazing installs.
- Bridge packers – Used around fixings or drainage points to protect seals and gaskets.
- Wedge packers – For micro-adjustments and toe-and-heeling work.
Trade-grade window & glazing packers (1–6 mm+)
Glazing packers provide consistent, non-compressible spacing for glass, sealed units and uPVC or aluminium frames. Our range covers common 1–6 mm thicknesses with recognised colour codes for quick identification onsite. Choose flat for general setting and levelling, bridge to span drainage/thermal breaks and protect gaskets, and wedge when you need fine adjustments that stay put. Ordering for a team? We supply mixed boxes for service vans and frame packers for door/window frame installs. Next-day UK delivery available and VAT invoices included. Need help selecting sizes? See our Size & Colour Guide or Contact us for trade advice.
Flat Glazing Packers – FAQs
Start with your system’s guidance — most installs use 1–6 mm. Choose the smallest packer that achieves level without stressing gaskets.
Colours indicate packer thickness for quick identification: yellow = 1 mm, red = 4 mm, blue = 5 mm, etc.
Yes — all flat packers are available in single or trade-size boxes with discounted pricing.
Orders placed before the cut-off are usually dispatched the same day. Next-day delivery available UK-wide.
Need Help Choosing?
Email our trade support team at support@glazingpacker.co.uk — we’ll help you pick the right packer set for your job.