Use drawer slides; mount the drawer on the wall; attach the shell to the slides, so it pulls out. Shifty Desk / Hallway Stand by Daniel Schofield This is such a great storage idea! It can be a shelf and a drawer.
Great for garage or shed. This is clever, storage shelving that hinge-opens to more storage shelving hidden behind. When you don't have more horizontal or vertical space this is so much better than deep shelves that you have to dig through.