Gridfinity base frame for 400x300mm Euro boxes. 356x252mm of clearance is required at the bottom of the box.

You can stack multiple layers by screwing 2 grids and 2 handles to a thin board (cut to 356x252mm). Predrill holes with the drilling jig.

With multiple layers of gridfinity that are easily removable you can get highly dense storage that is still convenient. Fits 48 Gridfinity units per layer

178x252mm print area required.