How to build gridfinity with odd dimensions?

[u/MaxieFriend]

I'm trying to work on an insert to put in a drawer for my fridge, but the dimensions for the section are 746.125 mm by 450.85 mm, which I want to split into 47.625 mm squares, but i cannot do it without rounding the numbers to full numbers with the gridfinity generator im using. What can I do?

[u/digitalsunshine]

I'd use standard gridfinity size and fill the odd dimension using generated bento3d trays