Repeat for the other two studs. Cut four other 23s at two feet long and nail them across the gap spaced 18 on center. Diy Basement Shelving The Wood Grain Cottage Basement Shelving Diy Basement Basement Remodeling Anthony pre-drilled all of the screw holes. Building basement shelves . When building basement shelves theres typically not much to worry about. When he had all of the shelves put together we began building the shelving unit in our basement. These will need to be cut to 6½ feet lengths. Step 1 - Construct the Shelves. Before drilling them together you will need to make sure they are square. I recently wrote a couple of posts Finished Basement Step 1 Insulation and Basement Framing and Insulation Update about how to properly insulate a concrete foundation wall in a basementNow that the walls are insulated Ive started finishing off our new storage room. Cut four 24s to 72 long for the legs. We started with the small shelf first adding the top and bottom sh...