Standard American Softwood Lumber Dimensions
Nominal Size
(US - Inches)
Actual Size
(US - Inches)
Actual Size
(Metric)
1" x 2" 3/4" x 1-1/2" 19 x 38 mm
1" x 3" 3/4" x 2-1/2" 19 x 64 mm
1" x 4" 3/4" x 3-1/2" 19 x 89 mm
1" x 5" 3/4" x 4-1/2" 19 x 114 mm
1" x 6" 3/4" x 5-1/2" 19 x 140 mm
1" x 7" 3/4" x 6-1/4" 19 x 159 mm
1" x 8" 3/4" x 7-1/4" 19 x 184 mm
1" x 10" 3/4" x 9-1/4" 19 x 235 mm
1" x 12" 3/4" x 11-1/4" 19 x 286 mm
1-1/4" x 4" 1" x 3-1/2" 25 x 89 mm
1-1/4" x 6" 1" x 5-1/2" 25 x 140 mm
1-1/4" x 8" 1" x 7-1/4" 25 x 184 mm
1-1/4" x 10" 1" x 9-1/4" 25 x 235 mm
1-1/4" x 12" 1" x 11-1/4" 25 x 286 mm
1-1/2" x 4" 1-1/4" x 3-1/2" 32 x 89 mm
1-1/2" x 6" 1-1/4" x 5-1/2" 32 x 140 mm
1-1/2" x 8" 1-1/4" x 7-1/4" 32 x 184 mm
1-1/2" x 10" 1-1/4" x 9-1/4" 32 x 235 mm
1-1/2" x 12" 1-1/4" x 11-1/4" 32 x 286 mm
2" x 2" 1-1/2" x 1-1/2" 38 x 38 mm
2" x 3" 1-1/2" x 2-1/2" 38 x 64 mm
2" x 4" 1-1/2" x 3-1/2" 38 x 89 mm
2" x 6" 1-1/2" x 5-1/2" 38 x 140 mm
2" x 8" 1-1/2" x 7-1/4" 38 x 184 mm
2" x 10" 1-1/2" x 9-1/4" 38 x 235 mm
2" x 12" 1-1/2" x 11-1/4" 38 x 286 mm
3" x 3" 2-1/2" x 2-1/2" 64 x 64 mm
3" x 4" 2-1/2" x 3-1/2" 64 x 89 mm
3" x 6" 2-1/2" x 5-1/2" 64 x 140 mm
3" x 8" 2-1/2" x 7-1/4" 64 x 184 mm
3" x 10" 2-1/2" x 9-1/4" 64 x 235 mm
3" x 12" 2-1/2" x 11-1/4" 64 x 286 mm
4" x 4" 3-1/2" x 3-1/2" 89 x 89 mm
4" x 6" 3-1/2" x 5-1/2" 89 x 140 mm
4" x 8" 3-1/2" x 7-1/4" 89 x 184 mm
4" x 10" 3-1/2" x 9-1/4" 89 x 235 mm
4" x 12" 3-1/2" x 11-1/4" 89 x 286 mm
6" x 6" 5-1/2" x 5-1/2" 140 x 140 mm
8" x 8" 7-1/4" x 7-1/4" 184 x 184 mm