The grooves are mostly made of plastic but metal material like aluminum will make it more durable. It is basically depends on what kind of product that you would like to display on it. This is a good option of technology to shopfitting for stores or even art gallery to hang the painting or other stuffs. Slatwall is usually available in color, there are oak, mahogany, maple, natural birch and knotty pine slatwall color. Knotty pine slatwall is the favorite color of slatwall. Even though it doesn’t really only made of knotty pine, but it uses knotty pine color to the laminate part of the slatwall. People choose this color because it is very light and also refreshing so that they can just put it in various places like in the living room, kitchen, garage or even in your bed and bathroom. Ideas & Inspirations.