Surfaced Three Sides (“S3S”)

The abbreviation “S3S” is a description of surface finish, usually pertaining to hardwood species. It stands for “Surfaced Three Sides”, which, as used in Goosebay’s hardwood lumber descriptions, indicates that two faces have been planed, and one edge has been processed with a “straight-line” rip saw, rendering the edge straight and smooth. The other edge is left rough, as the board came from the sawmill.

Some of our softwoods, namely the Western Red Cedar, STK grade, are finished “S1S2E”, meaning surfaced on two edges and one face, leaving the second face rough.