First, I used a 2x4 for the top surface, 3/4" plywood for the sides with some 2x2s for rigidity. A couple corner braces and that's it. Everything is inset about 1" from the sides and top so it disappears unless you're right on top of it. Here I added a couple coats of our wall paint and made holes for some wireless charging pucks for our phones.

Tags: diy