Kitzmans 5-Step Treated Stair Stringer, 2 in. x 10 in. provides a sturdy and reliable framework for your staircase, ing essential load-bearing support to both treads and risers. Designed to be installed on either side or in the center of a flight of stairs, this 5-step pre-cut stringer is crafted from durable 2 x 12-inch No. 2 treated Southern Yellow Pine. With a 7-inch rise, it is i for both new stair construction and projects, ensuring long-lasting strength and stability for your stairs. Model Number: