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. Slatwall is a technology of building materials to is design to hang or to display merchandising accessories. It can be used to display some products in stores like girls accessories to even pictures or bicycle. This kind of technology is basically consists of panels and grooves that hangers can be attached into the grooves. Ideas & Inspirations.