One of the best slatwall color that people choose is the knotty pine slatwall. This kind of slatwall is very natural and it is good for most kind of wall and interior designs and color. 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. Ideas & Inspirations.