Garage Workbench Dimensions

I built mine about 30yrs ago. Built it free standing so I could move where ever I go. I've moved it twice. It's 8ft. long, 3ft. high & 3ft. deep with on shelf. I used 2X2X1/4 Angle Iron for the frame, with flat bar bracing. 2X6 tongue groove with 1/4" tempered Masonite over that for the top & shelf. Vise on one end, bench mounted drill press on the other. Later I added a add-a-drawer under the top. It works great, but the back ft. seems to be a catch all. I'm thinking about taking it apart & narrowing it to 30" deep. But I have small garage.