'The Joiner' Bundle pack: 1 Mini + 1 Original Midi 3D Square

Includes: One Original Midi 3D Square and one Mini 3D Square

For: Joiners, cabinetmakers, and multi-skilled makers who want precision at every scale.

Bring professional accuracy to every job — big or small. Meet your new favourite on-site assembly jigs.

The Joiner Bundle Pack gives you both sizes of our precision-engineered 3D assembly squares, giving you complete flexibility in the workshop or on site. 

We won’t try to list every use — because once you’ve got them in your hands, you’ll find your own. That’s what happens when tools are built to work with you.

Clamps are not included - these squares are designed to fit Festool, Makita, and Dewalt-style rail clamps, among many others, as well as most Irwin clamps, for quick repositioning and efficient workflows.

IMPORTANT: After initial push-fit assembly, all screw holes must be piloted to the full depth of the screw using a 2.5mm or 3mm diameter drill bit (not included).

Why it works

Hold parts tight and square in three dimensions, then direct-screw the joint from the outside knowing everything will stay perfectly lined up. No dominos, no Lamello, no biscuits, no marking out — just clean, professional results every time.

Perfect for DIY & Trade

DIY: Makes tough jobs simple with minimal tools.

Trade: Boosts efficiency and profit both in the workshop and on-site.

Workshop Tested

Designed, tested, refined, and trusted in our own Sheffield fitted furniture workshop, these jigs make fast, accurate, strong joints with no fuss. From tight door linings to tall cabinets, this pair has every angle covered.

We still regularly use both these jigs in our 2600 sq ft Sheffield workshop, alongside CNC, Lamello, Festool and Mafell tool systems - because sometimes, this simple tool is still the most efficient solution.

Explore various projects built using our jigs on the display storage section of our website.

Pack contents

1 x Mini 3D Square

The Mini 3D Square is perfect for smaller projects where the full-sized square won’t fit — from door linings and drawer boxes to studwork and narrow shelving. Despite its shorter height, it delivers the same rock-solid accuracy and ease of use as its larger counterpart.

Best for: Door frames, drawers, compact units, studwork

For more information see the listing for the Mini 3D Square.

1 x Original MIDI size 3D Square

The Original Midi 3D Square is a workshop staple; trusted by furniture makers and fitters for fast, flawless cabinet assembly. Designed for aligning and clamping larger carcases, bookcases, and bridging units with total confidence. Its larger format provides excellent clamping reach and stability for bigger carcases and precision alignment during builds.

Best for: Cabinets, shelving, bridging units, general assembly

For more information see the listing for the Original Midi size 3D Square.