Give any wall a bit of dimensional interest with wainscoting, above. To set apart the lowest
3 feet of a room’s walls, install a 1×4 board horizontally at the 3-foot mark and a 1×6 board along the floor. Add 1×4 vertical boards between the horizontals at even intervals around the room. Caulk any gaps between the boards and the drywall, use spackle paste to cover nail holes, and paint as desired.