Lumber Dimensions: Nominal vs Actual - Archtoolbox
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Softwood Lumber DimensionsSoftwood Timber DimensionsSoftwood Lumber LengthsHardwood Lumber DimensionsGlue Laminated Lumber DimensionsSoftwood lumber that has a thickness over 5" is called timber. While NIST Publication PS20indicates that nominal 7" to 15" thick timbers should have 3/4" removed for a finished dimension (e.g. a nominal 8x8 timber has a minimum finished size of 7.25" x 7.25"), most timbers over 7" are finished with 1/2" removed.See more on archtoolbox.com Softwood lumber that has a thickness over 5" is called timber. While NIST Publication PS20indicates that nominal 7" to 15" thick timbers should have 3/4" removed for a finished dimension (e.g. a nominal 8x8 timber has a minimum finished size of 7.25" x 7.25"), most timbers over 7" are finished with 1/2" removed.
Softwood lumber that has a thickness over 5" is called timber. While NIST Publication PS20indicates that nominal 7" to 15" thick timbers should have 3/4" removed for a finished dimension (e.g. a nominal 8x8 timber has a minimum finished size of 7.25" x 7.25"), most timbers over 7" are finished with 1/2" removed.
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