An uneven floor can be not only an unsightly mess but a big time tripping hazard! How do you fix the issue quickly and in a budget friendly fashion? Choose the Roppe Subfloor Leveler! This Subfloor Leveler is constructed using a unique thermoplastic rubber compound, which is flexible and very easy to work with, while also maintaining strength and durability. Unlike other levelers, this one is available in several thicknesses and is also pre-scored for easy on-site trimming. Material - Constructed of a durable thermoplastic rubber compound, so it's environmentally friendly, Contains 99% post-industrial waste, bio-based phthalate free plasticizer, from a rapidly renewable resource, Made in U.S.A. and meets FloorScore®, NSF332 Gold and CHPS criteria, Acceptable Subfloors - Concrete, old wood, vinyl or steel Sizes - Available in 48" lengths in two depths 12" (304.8 mm) and 18" (457.2 mm), and four thicknesses: 1/8", 1/4", 3/8" and 1/2"0 Weight - 1/8" carton of 15 pieces weighs -52lbs, 1/4" carton of 8 pieces weighs 37lbs, 3/8" carton of 8 pieces weighs 65lbs, and 1/2" carton of 4 pieces weighs 72 lb Spec Sheet - Printable Spec Sheet.