Rustic grade white oak, kiln dried, milled to a smooth face. Knots, mineral streak, and grain variation come with the grade, and the surface stays clean rather than textured. Lock mitered, unfinished, built to order in any custom size.
What Rustic Grade Means Here
Rustic is a lumber grade. It means the board was allowed to keep the knots, mineral streak, and grain variation that a clear grade would have cut out.
So you get real interest in the face while the color stays in a controlled range. It sits between a plain painted beam and the weathered hemlock.

