I appreciate the point about not being 90 degrees because I periodically need plastic bins for board game organization and the ideal shape is a perfect rectangl

I appreciate the point about not being 90 degrees because I periodically need plastic bins for board game organization and the ideal shape is a perfect rectangle of an even fraction of both box inner dimensions. At least now I know why all the kits for this use laser-cut balsa wood or foamboard with home assembly….