Build safe, durable outdoor stairs with this 3-Step Pressure Treated Brown Stair Stringer. Precision-cut from quality lumber, this pre-notched stringer simplifies stair construction while providing reliable structural support for decks, porches, sheds, and other outdoor projects. Pressure treated to resist rot, decay, fungal damage, and insect attack, the brown finish blends beautifully with most pressure-treated decking and railing systems.

Designed for quick installation, this stringer accommodates standard stair treads and provides a consistent rise and run for code-compliant residential stairways. Ideal for new deck construction or replacing worn stair components. Typical 3-step stringers are suitable for deck heights of approximately 19–21 inches above grade.