Fully assembled gymnastics and cheer spring floor. Made from 2 layers of 3/8" Russian Baltic birch decking. This floor has 4" velcro between layers and Palmer Power springs. Bottom panels are shipped with the springs already attached. There is a 5 Year Warranty against breakage. Please call for freight charges. For custom size spring floors multiply your length by width and enter the square footage in the quantity & check your shopping cart on the upper left.