Our 2×6 Yellow Pine lumber is sold in 8′, 10′, 12′ and 16′ lengths. Kiln-dried in a #1 frame saver grade. The #1 grade still allows for knots and wane, but will have fewer and smaller knots than the #2 grade. Boards are S4S where both sides and edges are planed smooth. Actual board dimension is a 1-1/2″ thick by 5-1/2″ wide.