Box stair treads are made of 1 inch thick solid wood and available from 36 inches to 96 inches in length. Box treads can be used in either new construction or for remodeling an existing staircase. The staircase must have closed stringers to use box treads, if there is an open stringer on one or both sides you will need a return tread.
When measuring a box tread the length of the tread is determined by the width of your staircase. Tread depth varies depending on the space the staircase is in. If the staircase doesn't have much space to go from the first floor to the second floor the tread depth will be smaller. Our standard tread depth is 11.5 inches. The smallest allowable tread depth is typically 10 inches, check your local building codes to confirm.