WALNUT, Shaker Kitchen Door for HOWDENSDescription Material Paint Drilled for Drilled for HOWDENS. Stile and Rail width is 70mm x 22mm thick, leaving a panel thickness of 9mm. Solid walnut frame with veneered walnut panel. We would strongly suggest using magnet catches where possible on the doors to try and minimise the risk of bowing. Clear coat lacquered spray finished. 10% flat matt super durable finish as standard.