Our concrete Stair Treads are cast with 4 bolts in the bottom to attach to metal stair stringers. They come in two lengths. Contact us for details and pricing.
ST11-36 - this stair tread is 35 3/4" long, 11" wide, 2 1/2" thick and 85 lbs.
ST11-45 - this stair tread is 44 3/4" long, 11" wide, 2 1/2" thick and 105 lbs