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Common Pressure Treated Lumber Sizes

Common Pressure Treated Lumber Sizes

Common Measurement (T x W) 5/4-in x 6-in (63) 2-in x 4-in (58) 2-in x 6-in (55) 4-in x 4-in (52) 2-in x 8-in (48) 4-in x 6-in (48) results. 6-in x 6-in (46) results. 2-in x 12-in (42) results.
Most dimensional pressure treated lumber is treated to .25 or .40 pcf in ACQ. Larger dimensional lumber (2×8 and above) can be treated to .60 pcf with CCA but only for use in certain commercial construction applications.
Lumber sizes are usually given in “nominal” measurements. The nominal measurements are a board's size before it has been planed smooth (surfaced) on all 4 .
Pressuretreated lumber is ideal for outdoor construction as it has a long, useful life span and is much less expensive than. Common grades, from worst to best, are utility and structural select.. Species & Sizes Of PressureTreated Wood.

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