Sizes of Western Red Cedar Trim Boards

Western Red Cedar trim boards are available in the sizes shown in the following table.

Available Sizes

Thickness (in.) Width (in.)
Nominal Actual Nominal Actual
Dry Green Dry Green
Rough
1 3/4 3/4 2 1-3/4 2
  13/16 13/16 3 2-3/4 3
  7/8 7/8 4 3-3/4 4
5/4 1-1/8 1-1/8 6 5-3/4 6
      8 7-3/4 8
      10 9-3/4 10
      12 11-3/4 12
Surfaced One Side Two Edges (S1S2E)
1 11/16 11-16 2 1-1/2 1-9/16
  7/8 3/4 3 2-1/2 2-9/16
    13/16 4 3-1/2 3-9/16
    7/8 6 5-1/2 5-9/16
5/4 1 1-1/32 8 7-1/4 7-3/8
2 1-1/2 1-1/2 10 9-1/4 9-3/8
      12 11-1/4 11-3/8
Surfaced Four Sides (S4S)
1 11/16 3/4 2 1-1/2 1-9/16
  7/8 3/4 3 2-1/2 2-9/16
    13/16 4 3-1/2 3-9/16
    7/8 6 5-1/2 5-9/16
5/4 1 1-1/32 8 7-1/4 7-3/8
2 1-1/2 1-9/16 10 9-1/4 9-3/8
      12 11-1/4 11-3/8