I wanted to use use gridfinity containers on my pegboard so I made a quick remix of Zack Freedman's Gridfinity baseplates to work with CSD_Salzburg's fantastic Ikea Skadis Universal Hook system.

Just like the source models no supports are required.  You'll need to print two hooks for each baseplate.

The tolerances for the hooks attaching are quite tight, I use a small mallet to attach the hooks.  Printing the hooks scaled to be a tiny bit thinner can help if you can't get them to fit.

Skadis uses a 40mm spacing but each Gridfinity unit is 42mm wide so inevitably there will be a gap between the baseplates.  The 4x1 baseplate feels like the best compromise because you can fit 4 wide on the 76cm wide board, 3 on the 56cm and 2 on the 36cm.  I have also made a 4x2 if you need a deeper shelf but I wouldn't load it up with too much weight especially on the grids furthest from the pegboard!