The ShimLevel Range: Precision Packers, Spacers & Wedges for Every Task

Ideal for fitting Doors, Windows and general construction purposes

Welcome to the home of ShimLevel – the UK’s premier range of professional-quality shims, spacers, and levelling wedges. Whether you're a builder fitting high-spec windows, a landscaper installing decking, or a DIY enthusiast hanging cabinets, achieving a perfectly level and stable finish is non-negotiable. Our comprehensive systems are engineered to deliver just that, with patented features that outperform traditional packers on every level. From our high-strength recycled materials to our innovative anti-slip designs, every ShimLevel product is built to save you time, prevent failure, and guarantee a superior result."

The ShimLevel Advantage: Patented Features & Benefits

  • Patented Anti-Slip Stacking System:

    • The Problem: Standard packers slip and collapse when stacked, wasting time and risking inaccurate levelling.

    • The ShimLevel Solution: Our unique patented clip (featured on 3-10mm spacers) securely locks multiple spacers together, preventing slippage and creating a solid, stable stack. This ensures your structural load is supported safely and accurately .

  • U-Shape & Comb Grid Design for Easy Fixing:

    • The Problem: Trying to hold a shim in place around a screw or dowel while tightening a fixing is often a two-person job.

    • The ShimLevel Solution: Our U-shape shims and wedges slide easily over fixings. The integrated comb grid or central notch locks the shim in place, freeing up your hands to tighten the screw or dowel efficiently .

  • High-Strength, Durable & Eco-Friendly Materials:

    • The Problem: Wooden wedges can rot, swell, or split under load . Many plastic alternatives are brittle.

    • The ShimLevel Solution: Manufactured from high-quality, recycled Polypropylene (PP) and Polystyrene (PS), our products are resistant to moisture, rot, and swelling. With high compressive strength, they provide a durable, long-lasting, and environmentally responsible solution .

  • Instant Identification & Ease of Use:

    • The Problem: Searching for the right thickness in a pile of packers slows down the job.

    • The ShimLevel Solution: All sizes are colour-coded and have the thickness clearly printed on each piece for immediate and easy identification on site .

Window fitting using StraaRise Spacer shims
ShimLevel Glazing Packers / Spacers

Best for: Levelling, spacing and packing for a wide range of applications, particularly aligning door and window frames.

Key Feature: Versatile flat shims with a textured surface for grip. Available in thicknesses from 1mm to 6mm. Breakable in half for custom sizing.

ShimLevel Short and Long U-Shaped Spacer Shims

Best for: Easy installation around screws and dowels for doors, windows, and general construction.

Key Feature: U-shape with wedge-shaped tips for easy insertion. The Short U-Shape features a central notch for fitting around fixings, while the Long U-Shape features a comb grid for positive locking

ShimLevel Popular Mixed Starter Packs of Spaces, Levellers, Packers and Wedges

Best for:  Professionals and DIYers needing a ready-to-use. comprehensive assortment for all eventualities.

Key Feature: Curated mixes of our most popular flat shims, short U-shapes, long U-shapes, and wedges in a variety of types and convenient pack sizes.

ShimLevel Precision Levelling Wedges

Best for:  Uneven surfaces and structures compensation.

Key Feature: Two types.
Pre-Cut Wedge Strips: Versatile strip in 8 sections (1mm to 8mm), ideal for furniture and cabinets.
U-Shape Precision Wedge: Non-slip textured wedge with grooves for levelling on sloped surfaces.

ShimLevel Construction Spacers and Wedge Kit

Best for:  The professional or serious DIYers requiring a complete, portable system.

Key Feature: A 100-piece kit in a reusable container, featuring interlocking wedges (90mm & 170mm) and spacer shims (2mm, 3mm, 5mm). Perfect for decking, roofing, and heavy-duty levelling.

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