Well as I hone my old rusty skills and learn new ones I have started another project for my shop by way of a hanging tool cabinet. The plans I'm using are from a Woodsmith book titles Shop Cabinets & Tool Stands. In this plan the box sides are all hardwood while the door panels and back are plywood. As I'm a bit short on hardwoods at the moment and have 10 sheets of plywood I asked myself why not make it all from plywood? I have an Incra IBox Jig which I've had very little practice with but am wondering if plywood could work well for this joint? I can't imagine a reason not and research hasn't turned up any negatives but I'd like to ask those who have the experience for suggestions. And yes, I can get hardwood but I thought the ply is cheaper, already on hand, and maybe a good practice exercise that may turn out just fine. Any thoughts?