SCRIBE-MASTER – SMJIG

Compact Router Surfacing & Flattening Jig (Up to 400mm Wide)

The SCRIBE-MASTER SMJIG is a compact, modular router surfacing jig designed for flattening, levelling and trenching timber up to 400mm wide. Ideal for river tables, slab work, reclaimed timber and workshop projects, it delivers controlled, repeatable routing without the need for a planer thicknesser.

Engineered from high-grade HPL with twin stainless steel support rails, the SMJIG offers precision, rigidity and durability in a lightweight format that stores easily when not in use. Perfect for serious home woodworkers and professional installers alike.

What the SMJIG Does

• Flattens warped or uneven timber

• Levels slabs for river tables

• Surfaces wide boards up to 400mm

• Cuts clean trenching channels

• Handles routing across grain, along grain and end grain

Depth of cut is controlled directly from your router plunge, allowing for fine skimming passes or deeper levelling cuts as required.

Built for Accuracy & Stability

Compact Grade HPL Cradle & Rails
Wear-resistant, stable and engineered for consistent accuracy.

Twin 12mm Stainless Steel Support Bars
Designed to support routers up to 7kg without flex or distortion.

Guide Bush Cradle System
Compatible with any router fitted with a 30mm guide bush — no fixed sub-base required.

Lockable Cradle Function
Allows single-axis movement for controlled trenching cuts.

Extendable Rail Design
Additional rails can be added for longer sled applications.

Modular Construction
Breaks down easily for storage — ideal for smaller workshops.

Why Choose the SMJIG?

• No planer thicknesser required

• Portable and space-saving

• Suitable for heavy routers (up to 7kg)

• Compatible with most major router brands

• Accurate across irregular and wide material

• Designed and manufactured for durability

Whether you're flattening live-edge slabs or levelling reclaimed boards, the SMJIG provides clean, controlled results with minimal setup time.

Router & Tool Requirements

• Plunge router (½” / 12mm collet, minimum 1300W)

• 30mm guide bush

• ½” / 12mm shank cutter

Specifications

Rails

• Length: 511mm

• Width: 50mm

• Thickness: 12mm

Steel Support Bars

• Length: 511mm

• Diameter: 12mm

Router Base Plate Bore: 30mm
Maximum Router Weight: 7kg
Maximum Material Width: 400mm

Ideal For

• River table projects

• Slab flattening

• Timber surfacing

• Workshop levelling tasks

• Site-based routing where machinery isn't practical