'The Cabinetmaker' Bundle pack: 2 Original Midi 3D Squares

£130.00

~~£160.00~~ £130.00

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Taxes included. Shipping calculated at checkout.

Material High Density Moisture Resistant MDF Dark Grey Valchromat

Free delivery to the UK and USAUsually sent within 5 working days, then 2 to 5 working days in the post.
14 days to return itUnused and in its original packaging. You pay the return postage.
Manufactured in SheffieldCNC cut from 12 mm board in our own workshop, where we use them daily.

In the box: 2 Midi squares. Flat packed with screws and a postcard with QR code links to the assembly videos. Clamps are not included. You will need a drill and a 2.5 mm or 3 mm bit to pilot the screw holes after push fitting the parts together.

Includes: Two Original Midi 3D Squares

For: Cabinetmakers, installers, and precision-focused tradespeople who build every unit to fit first time.

Bring professional accuracy to every cabinet, bridge, or shelving unit.

The Cabinetmaker Bundle Pack gives you a matched pair of our Original Midi 3D Squares — ideal for aligning and clamping 2 corners of a carcase simultaneously, or 2 ends of an internal shelf.

Get faster, cleaner setups, consistent joints, and the same professional results we rely on daily in our own Sheffield workshop.

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

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 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 aligned.

No Dominos, no Lamellos, no biscuits, no marking out — just clean, reliable results every time.

Compatible with Festool, Makita, and DeWalt-style rail clamps, as well as most Irwin clamps, for quick repositioning and efficient workflows.

Perfect for DIY & Trade

DIY: Makes tricky cabinet jobs simple with minimal tools.

Trade: Boosts efficiency, accuracy, 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.

We still use these jigs daily in our 2,600 sq ft Sheffield workshop, alongside CNC, Lamello, Festool, and Mafell 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

2 × Original Midi 3D Squares

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.

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

See the full Original Midi 3D Square listing for more information.

Specifications

Material: CNC-machined from 12mm high-density, moisture-resistant MDF, or 12 mm Grey Valchromat®, a high-performance, colour-throughout fibreboard. Both are stronger, denser, and more durable than typical MDF; smoother and flatter than birch plywood.

Dimensions: Height 203mm max (191mm to underside of overhanging lip); Max width of top plate 210mm; width of sides 192mm (fits between 200mm shelf gaps)

Packaging: Delivered flatpack with screws included (clamps not included)

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

Assembly and instructions

Your order includes a postcard with QR code links to the instructional videos. The same videos are linked below.

Instructional videos (assembly and full build guides) are included via the QR code provided with the product, or online:

Drilling straight through a clamped corner with a Midi square holding the joint — Clamp, pilot, then drive the screws straight through from the outside.

Clamps that fit

All common styles of rail clamp, including Festool, Makita and DeWalt, plus most Irwin clamps. The Mini square does not take the mini Irwin types. Clamps are not included.

A rack of different rail clamps that all work with the 3D Assembly Square — The clamp styles we use with the squares in our own workshop.

Material choice

Both are 12 mm boards, CNC cut, and denser than standard MDF. Grey Valchromat is coloured all the way through and is the material we recommend. Moisture resistant MDF costs less and holds square just as well.

Delivery and lead times

UK: free delivery on every square and bundle. 2 to 5 working days after dispatch. Highlands and islands can take longer.

USA: free delivery on all bundles. Single squares are $30 on orders below $130. 3 to 14 working days after dispatch.

Orders are usually processed within 5 working days, excluding weekends and public holidays. If your order has not arrived within 14 days, please contact us. Full details are in our Shipping policy.

Returns

Tell us within 14 days of delivery if you want to return an order. Items need to be unused and in their original packaging. You pay the return postage. If anything arrives damaged or wrong, send us a photo and we will put it right.

See our Refund policy for the full terms.

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