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TABLE 6.1 Properties of Sections for Standard Lumber Sizes [Dressed (S4S) sizes, moment of inertia, and section modulus are given with respect to xx axis, with dimensions b and h, as shown on sketch] Section Moment of modulus inertia Board feet Area of
Standard S4S 3 5 8 5 1 2 7 1 2 National Lumber Manufacturers Association.
X dressed size b 1 5 8 1 5 8 1 5 8
b
Nominal size h 4 6 8
h/2 b 2 2 2 Source:
X
h
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