How to

Gridfinity bins and openGrid boards

Make storage that fits a grid: Gridfinity bins and baseplates, openGrid boards and snaps, and pockets in your own part that take them.

Gridfinity and openGrid are open storage systems. Everything in one system shares a grid, so pieces from anyone fit together.

• Gridfinity is a 42 mm grid for drawers and desks. Bins sit in a baseplate, and stack on each other with their stacking lip. A bin's height is in 7 mm units: a 3U bin is 21 mm tall before its lip.
• openGrid is a 28 mm grid for walls and desks. A board has an opening in every cell, and a snap clicks into one, as the base for a mount. A full board is 6.8 mm thick; a lite board is 4 mm, with 3.4 mm lite snaps.

#Put one in

Open Insert › Ready-made and choose a piece. Its page shows the piece as you size it:

• cells along X and Y (and, for a bin, how many units tall);
• for a bin: stacking lip, magnet pockets (for 6 × 2 mm disc magnets), M3 screw holes and dividers;
• for a baseplate: magnet pockets, which add a 3.4 mm floor under the grid;
• for openGrid: full or lite.

New pieces start on Z 0, beside what is already in the Part. Each is one feature in History. Tap it there to change its size or options; it stays the same Body.

#Fit a system into your own part

A Gridfinity receiver cuts baseplate pockets down into the flat top face of a Body of yours, so bins sit in your drawer insert or tool tray. An openGrid socket cuts the board's openings into a Body, so a snap clicks into your own mount.

Choose the Body to cut into, then set the lower corner of the pockets, with Z at the height of that top face. The Body needs solid material under the whole footprint: 4.75 mm for a receiver, 6.8 mm (lite 4 mm) for a socket.

#Before a big print

Every size comes from the systems' published dimensions, but printers differ. Print a 1 × 1 piece first and check it fits what you have.

#Credits

openGrid is designed by David D and published under the Creative Commons Attribution 4.0 licence (openGrid documentation). Gridfinity is an open system released under the MIT licence.

Last updated 2 November 2026, for MakerSketch 1.0.