She used 1x12 1/4” plywood to build the storage shelves which she left a 1/2” short in length so she’d have some wiggle room when installing it into a not so square space.

Installing mudroom lockers with plenty of shelves, hooks, hanging rods or storage baskets will help you restore and keep the neat appearance of the home. Adding a bench will be another cute feature, ...

The back panel will be a mix of trim and a decorative hardboard and are more of there for reference. I tried to variable the onshape file so that thickness of the plywood and the width of the bench ...