It's actually standard wood grain wall paneling, the kind with the black grooves. We lucked into a bin of it at Home Depot that had a little water damage and had been marked down to about $3.50 each. We turned them with the wood grain side facing in, used a house spray painter and painted them gray, then did a splatter of a lighter gray. Then we hung them on runners mounted to the house siding and used a tile laser level thingie to get the grout lines positioned correctly. Then we used a corner paint roller to roll on the grout lines and then hand painted some highlights and shadows.Great set up! What are your walls made of? Are those scene setters or did you paint?