Flat Shim Packers 100x28x4mm Grey – Pack of 1000

4mm Flat Packing. When 3mm Isn't Quite Enough.

These 100x28mm grey flat shim packers step in where the 3mm falls short — providing that extra millimetre of correction for frames that are slightly further out, floors with a more pronounced variation, or reveals that need a touch more building out. Their flat profile makes them suitable for any application where a U-shaped packer won't reach.

Colour-coded grey for instant identification, and supplied in a bulk pack of 1000 for high-volume trade use.

Key Features

• 4mm thickness — ideal when 3mm undercorrects
• Flat profile — ideal where U-shaped packers can't be used
• 100x28mm size suits a wide range of frame and floor applications
• Colour-coded grey for quick on-site identification
• Durable plastic — won't compress, rot, or absorb moisture
• Pack of 1000 for high-volume trade use

Ideal For

• Window and door frame installation
• Hardwood and laminate floor installation
• Decking and garden building assembly
• Kitchen, bedroom, and bathroom cabinet fitting
• Any application requiring a flat, low-profile packer

Size: 100 x 28 x 4mm | Colour: Grey | Pack of 1000.