Opengrid Gridfinity Flush Mount Shelves /w Support

Updated 2026-01-24:  Added more 3x3 and 2x3 sizes and an improved support piece that snugs into the bottom holes of the shelf above for more solid fit.

These gridfinity shelves combine the opengrid system designed by DavidD with the gridfinity system designed by Zach Freedman.  I used stu142's great freecad gridfinity workbench to make the baseplates.

It is very much inspired by the lite 1x2 and 2x2 shelves made by jan .  They are very handy and require less filament.  I included a modified version that is utilizing the lite clips from jan's model.  If you have these shelves, you can add my supports if you need more stability.  I encourage you to check out jan's shelves.

I like the design with the fused clips, as I have some opengrid up on a wall with significant traffic around a 45 degree corner.  Keeping the shelves as flush to the wall as possible maximizes usable space.  The shelves line up beside each other, and bins can span shelves (even-numbered grid widths only and snap side of off-centred 3x3 sizes).

See my print profile for full details, includes 4x3, 3x3, 2x3, 2x2 full opengrid variants, 2x2 opengrid lite, and supports to help shelves hold more weight.  

Also included is a pre-matched plate: 4x3 gridfinity shelf and 2 supports.

All snaps are directional.  Insert the top of the snaps first (the side with the upwards arrow).  With the top of the snaps snug against the upper inside of the intended opengrid row, press the bottom of the snaps in between the gridfinity squares to fix them in place.  I hold the shelves in and press with my thumbs.

At first, I just wanted a version that would press-fit the magnets I use (6x2mm magnets, which I find press-fit into a 6.00mm diameter hole with my printer profile).  Then, I came across the stronger screw-in versions of baseplates, and tried connecting the 2 and modifying the full snap to print in the non-standard direction connected to the shelf.

Pictured are my prints with Bambu Blue PLA Silk+.  I quite like it for opengrid and gridfinity.  Any functional PLA should work for the shelves.

I want 3-gridfinity-depth versions, and figured they may need supports.  These are designed to be placed 2 opengrid spaces below and support a gridfinity junction of the shelf.
* The supports also make neat hooks!

** The shelve are quite secure, even without the supports.  You can see in one of my pictures, a 4x3 shelf with two trays holding a lot of magnets at the very end of the shelf, with no sag.

I prefer a pretty snug fit for the magnets, so that 100% of the magnets press fit.  This means that the tiny variations in printing and magnets make some of the magnets require a fair amount of pressure to insert.  I recommend using the jigfinity magnet jig by robosquiggles to ensure consistent magnet polarity and get the magnets in.

I included a tiny cutout of the magnet portion so you can test the fit of your magnets before you print a full shelf.  I don't think it's a perfect test of fit due to a lot less surrounding geometry, but it's quick and cheap… I've been told I am too.