0,2 m3 - Mobile office for coworking. Chair contains drawer/safe to hold your stuff, and back folds down to fit under table. It can be stored on a shelf when not in use, since it only takes up 0.2 cubic meters (about 7 cubic feet).
Balance a wooden board across two IKEA storage cabinets, and boom—you have an instant desk with plenty of room to stash your office supplies. The one above was spotted in a home designed by Shift Interiors.