Fiberglass is strong but lightweight and easy to fabricate, and Grainger carries a wide assortment of fiberglass reinforced materials for your building projects. Shop for fiberglass stair tread covers that can provide economical, slip-resistant footing over existing wood, metal or concrete steps in your facility, as well as fiberglass sheets. The sheets are corrosion resistant and have grit tops, so they offer safer footing when placed on slippery concrete or metal surfaces. You can also get the non-conductive fiberglass rod stock you need for your industrial, manufacturing, and utility applications. Find all the fiberglass you need at Grainger.