200 x 3mm White Top up Pack Glazing Packers 28x100mm, Colour-Coded Plastic Shim Spacers, for Windows, Doors, Frames and Levelling, Non-Compressible, Trade-Grade

• UK Colour‑Coded for Instant Thickness ID – 1 mm Green, 2 mm Black, 3 mm White, 4 mm Grey, 5 mm Blue, 6 mm Red.
• Non‑Compressible, Rigid & Reliable Support – Polypropylene packers resist crushing, moisture and outdoor conditions.
• Accurate 28×100 mm Size – Ideal for UPVC window installation, door frames, flooring, furniture, and construction shimming.
• Mixed Packs, Refills & Bulk Trade Sizes – Choose from 100‑Pack Mixed, 200‑Pack Single Size Refills, and 500‑Pack Trade Packs.
• Clean, Precise Levelling & Alignment – Perfect for spacing, packing, aligning and stabilising frames and structures.

Colour‑coded glazing packers provide fast, accurate shimming for windows, doors, flooring, furniture and construction projects. Each thickness uses a dedicated UK industry colour for quick identification. Made from strong, non‑compressible polypropylene, these packers offer stable, long‑lasting support without crushing under load. Their 28×100 mm size is the glazing standard for UPVC windows, door frames, joinery, and general levelling work. Choose the 100‑Pack Mixed (1–6 mm) to start any job, then top up with 200 and 500 single‑size packs in the most used thicknesses: 2 mm, 3 mm and 5 mm. Trusted by installers, builders, carpenters and DIY users wanting consistent, accurate and professional results.