New Zealand architect Davor Popadich worried that plywood floors his mezzanine bedroom would feel monotonous, given that the walls and ceilings were ply too. So he and his wife sourced second-grade French oak floorboards and filled in the holes in the timber’s knots themselves. Then they used leftover boards to make a door to cover a small opening between their room and August’s and for the sliding pantry door in the kitchen. Photo by Simon Devitt.