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=== chair rail ===Or chair board, wooden molding on a wall around a room at the level of a chair back. Chair railing trim moulding / molding. 3' is the standard height.Molding used to cover any interior angle. Molding used to cover any interior angle.2x4 or 2x6 vertical framing member used to assemble walls.2x4 or 2x6 vertical framing member used to assemble walls. Wall studs normally are spaced at either 16 inches or 24 inches on center. [[Category:Construction]]