D4S Lumber is a very common material used to build solid wood furniture. The main difference is that it has been dressed on all 4 sides, hence where the D4S name comes from. D4S lumber is ideal for smaller shops that may not have a jointer or a planer to dress lumber.

What does Cedar D4S mean?

Surfaced Four Sides (S4S or PAR, D4S) The smooth surface on all four sides presents a uniformly sized product with a quality appearance. This surface finish is most commonly found on Clear grades.

What is D2S lumber?

D2S. Lumber that has been dressed on two sides.