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Nominal Vs. Actual Dimension

Dressed/ s4s Lumber

Nominal Vs. Actual

 

 
Nominal (in name only) Actual
2 x 4 1.5" x 3.5"
2 x 6 1.5" x 5.5"
2 x 8 1.5" x 7.25"
2 x 10
1.5" x 9.25"
2 x 12 1.5" x 11.25"
1 x 4 .75" x 3.5"
1 x 6 .75" x 5.5"

Rough Lumber

Nominal Vs. Actual

 
Nominal (in name only) Actual
2 x 4 1.625" x 3.625"
2 x 6 1.625" x 5.625 "
2 x 8 1.625" x 7.375 "
2 x 10
1.625" x 9.375"
2 x 12 1.625" x 11.375"
1 x 4 .8125" x 3.625"
1 x 6 .8125" x 5.625"