Shop for Flooring at The Home Depot. Contractor size roll- Now you can use the Elastilon Strong Self Adhesive Installation System to install any hardwood floor over any surface including directly over concrete. This revolutionary patented product will now allow you to install your hardwood anywhere, in any room, including your basement. No subfloor required. No nails, no messy glues. Imagine replacing the traditionally complex and messy installation of hardwood floors with a simple 3 step peel and stick process. It will save you time and labor, eliminate gapping and cupping, increase cushion comfort, reduce sound transmission, and so much more. Contractor rolls covers 269.10 sq. ft. in a roll.