Amazon has a sturdy wall-mounted fold-out desk for $215 that also becomes a full shelving unit when not in use so you can ...

Whether louvered or paneled, a folding door adds a cleanly textured backing to an upright shelving ... using a few wood ...

The Wooden Folding Wall Mounted ... Store and display your prized possessions while using a functional work desk that neatly moves into a covered shelf when you clock out. While you do need ...