WALNUT, Shaker Slimline Kitchen Door for IKEA METODDescription Material Paint Drilled for Drilled for IKEA METOD. Stile and Rail width is 25mm on the front and 70mm on the back 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.