Two planes, four posts, nothing else. A batten is the thinnest piece of wood a builder still calls structure — the strip that closes a gap and carries more than its section suggests. The chair works the same way. Two shells of molded ply, shaped only where the body needs shaping, carried on a tubular steel post frame that does its work without announcing it. The back floats free of the seat, fixed at two points per side and nowhere else. That gap…
