Primed Riser Material Engineered and pre-primed for stair construction—straight, stable, and ready for paint or finish. Categories Imported, LVL Stringers & Stair Risers Substrate Finger-Jointed Solid Veneer Species Radiata Pine Thickness 3/8” to 3/4” Sizes Pre-Cut Lengths: 36”, 42”, 48”, 52” up to 16' Availability Stocked Item Learn More Request Quote Similar Products Radiata Pine Explore Hardboard Explore MDO Explore Primed LVL Stair Stringer Explore