"Dry-Dek" is 9/16 inch thick raised rubber interlocking flooring material for your garage, shop or other work area's. Made of rubber and plastic material, black 12"x12" squares with yellow 2"x12" edging. Covers an area approximately 10' x 20' (3rd pic), 12' x 16' (4th pic) or 14' x 16' (with 4'x6' open area in the middle). Great for your garage or shop so you don't have to lay down or stand on hard concrete. Factory charges $5 per (12"×12") square and $3.50 per yellow edging strip. A 10'x20' (= 200 sq ft) area of black material would cost you $1000 before shipping, taxes or the cost of the yellow edging material. ** $350 cash only - price is firm. Fordtudor37@att.net or 860-303-6757 (Verizon cell, call or text) Seller will not get involved in shipping in any way. Seller will not get involved in checks of any kind, (I've been burned before).