Our Budget Stage and Riser Stairs are an economical and easy way to add stairs to your portable platforms. The treads are surfaced with black PolyTrac, and have white resilient tread nosings to increase visibility and help prevent slips. Two sizes are available: the single-tread model is for riser setups of 8" to 16" and the two-tread model is for 16" to 24" heights.