4mm Packing. When the Gap Needs More.

These 101x43mm red U-shaped shim packers are the choice when standard 3mm isn't quite enough. A 4mm thickness bridges the gap between fine adjustment and more substantial levelling — particularly useful when frames have shifted, substrates are uneven, or tolerances are wider than expected. The U-shaped slot keeps installation fast, sliding around fixings without the need to remove them.

Colour-coded red for instant identification on site, and supplied in a bulk pack of 500 for uninterrupted workflow.

Key Features

• 4mm thickness — ideal when 3mm falls short
• U-shaped slot fits around fixings without removal
• 101x43mm footprint suits standard frame and cabinet applications
• Colour-coded red for quick on-site identification
• Durable plastic construction — won't compress, rot, or degrade
• Pack of 500 for bulk trade use

Ideal For

• Window and door frame installation
• Kitchen, bedroom, and bathroom cabinet fitting
• Dry lining and drywall assembly
• Skirting, architrave, and cladding fixing
• Hardwood and laminate floor installation

Size: 101 x 43 x 4mm | Colour: Red | Pack of 500.