Blank treads are mostly used when stairs are located between two walls and to make custom curved stair treads and landings. Treads for these stairways have to be flat on both sides and do not have miter returns on the edges. Blank treads a bullnose along the front edge for strong visual appeal and because it will be easier on the feet not having a sharp edge if you walk around in bare feet or with socks only. Also, a hard edge will tend to dent easily after use. Our unfinished blank stair treads are 1-1/16" thick, available in 5 different widths and 42", 48", 54", 60", 72", 84" and 96" lengths.