Wall Mounted Diy Floating Desk . This wall mounted desk is a show stopper and we go through the proces. You'll want this area sturdy so make sure they are all at least as wide as whatever boards you will be used as table surfaces. Walnut Floating Desk With Storage by FORMOLLY Formolly Floating from www.pinterest.com This byot diy video tutorial is all about how to make a floating desk start to finish. Floating wall mounted desk with storage. This one, for example, measures 58” l x 20” d x 15” h (face is 5” h) and it’s perfect for small spaces.