LUMBER GRADING TERMS
Lumber Grading Terms
J1S, J2S Jointed
S4S Planed on all 4 surfaces of the board
S2S Planed on both surfaces of the board
S1S Planed on one surface of the board
RGH Rough Sawn Lumber
R1E Straight line ripped one edge
R2E Straight line ripped two edges
Resaw A board split in half from a thicker board
4/4 1” rough thickness
5/4 1-1/4” rough thickness
6/4 1-1/2” rough thickness
8/4 2” rough thickness
10/4 2-1/2” rough thickness
12/4 3” rough thickness
16/4 4” rough thickness
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