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Engineering Properties Southern Pine Lumber

Civil Engineering and Design
Engineering Material Properties

Engineering Properties of Visually Graded Southern Pine Lumber.

Lumber Visually Graded Dimension, Engineering Design Properties - Engineering design values are for normal load duration and dry service conditions

Species and commercial grade	Design values, lb/in2			Grading rules agency
	Compression perpendicular to grainFc⊥	Compression parallel to grain Fc	Modulus of elasticity E
Dense select structural	660	2,250	1,900,000	SPIB
Select structural	565	2,100	1,800,000
Nondense select structural	480	1,950	1,700,000
No. 1 dense	660	2,000	1,800,000
No. 1	565	1,850	1,700,000
No. 1 nondense	480	1,700	1,600,000
No. 2 dense	660	1,850	1,700,000
No. 2	656	1,650	1,600,000
No. 2 nondense	480	1,600	1,400,000
No. 3	565	975	1,400,000
Stud	565	975	1,400,000
Construction	565	1,800	1,500,000
Standard	565	1,500	1,300,000
Utility	565	975	1,300,000
Dense select structural	660	2,150	1,900,000
Select structural	565	2,000	1,800,000
Nondense select structural	480	1,850	1,700,000
No. 1 dense	660	1,900	1,800,000
No. 1	565	1,750	1,700,000
No. 1 nondense	480	1,600	1,600,000
No. 2 dense	660	1,750	1,700,000
No. 2	565	1,600	1,600,000
No. 2 nondense	480	1,500	1,400,000
No. 3	565	925	1,400,000
Stud	565	925	1,400,000
Dense select structural	660	2,050	1,900,000
Select structural	565	1,900	1,800,000
Nondense select structural	480	1,750	1,700,000
No. 1 dense	660	1,800	1,800,000
No. 1	565	1,650	1,700,000
No. 1 nondense	480	1,550	1,600,000
No. 2 dense	660	1,700	1,700,000
No. 2	565	1,550	1,600,000
No. 2 nondense	480	1,450	1,400,000
No. 3	565	875	1,400,000
Dense select structural	660	2,000	1,900,000
Select structural	565	1,850	1,800,000
Nondense select structural	480	1,750	1,700,000
No. 1 dense	660	1,750	1,800,000
No. 1	565	1,600	1,700,000
No. 1 nondense	480	1,500	1,600,000
No. 2 dense	660	1,650	1,700,000
No. 2	565	1,500	1,600,000
No. 2 nondense	480	1,400	1,400,000
No. 3	565	850	1,400,000
Dense select structural	660	1,950	1,900,000
Select structural	565	1,800	1,800,000
Nondense select structural	480	1,700	1,700,000
No. 1 dense	660	1,700	1,800,000
No. 1	565	1,600	1,700,000
No. 1 nondense	480	1,500	1,600,000
No. 2 dense	660	1,600	1,700,000
No. 2	565	1,450	1,600,000
No. 2 nondense	480	1,350	1,400,000
No. 3	565	825	1,400,000

Table Continued

Species and commercial grade	Design values, lb/in2		Grading rules agency
	Compression parallel to grain Fc	Modulus of elasticity E
Dense select structural	2,250	1,900,000	SPIB
Select structural	2,100	1,800,000
Nondense select structural	1,950	1,700,000
No. 1 dense	2,000	1,800,000
No. 1	1,850	1,700,000
No. 1 nondense	1,700	1,600,000
No. 2 dense	1,850	1,700,000
No. 2	1,650	1,600,000
No. 2 nondense	1,600	1,400,000
No. 3	975	1,400,000
Stud	975	1,400,000
Construction	1,800	1,500,000
Standard	1,500	1,300,000
Utility	975	1,300,000
Dense select structural	2,150	1,900,000
Select structural	2,000	1,800,000
Nondense select structural	1,850	1,700,000
No. 1 dense	1,900	1,800,000
No. 1	1,750	1,700,000
No. 1 nondense	1,600	1,600,000
No. 2 dense	1,750	1,700,000
No. 2	1,600	1,600,000
No. 2 nondense	1,500	1,400,000
No. 3	925	1,400,000
Stud	925	1,400,000
Dense select structural	2,050	1,900,000
Select structural	1,900	1,800,000
Nondense select structural	1,750	1,700,000
No. 1 dense	1,800	1,800,000
No. 1	1,650	1,700,000
No. 1 nondense	1,550	1,600,000
No. 2 dense	1,700	1,700,000
No. 2	1,550	1,600,000
No. 2 nondense	1,450	1,400,000
No. 3	875	1,400,000
Dense select structural	2,000	1,900,000
Select structural	1,850	1,800,000
Nondense select structural	1,750	1,700,000
No. 1 dense	1,750	1,800,000
No. 1	1,600	1,700,000
No. 1 nondense	1,500	1,600,000
No. 2 dense	1,650	1,700,000
No. 2	1,500	1,600,000
No. 2 nondense	1,400	1,400,000
No. 3	850	1,400,000
Dense select structural	1,950	1,900,000
Select structural	1,800	1,800,000
Nondense select structural	1,700	1,700,000
No. 1 dense	1,700	1,800,000
No. 1	1,600	1,700,000
No. 1 nondense	1,500	1,600,000
No. 2 dense	1,600	1,700,000
No. 2	1,450	1,600,000
No. 2 nondense	1,350	1,400,000
No. 3	825	1,400,000

 

* For size factor C_f , appropriate size adjustment factors have already been incorporated in the tabulated design values for most thicknesses of southern pine dimension lumber. For dimension lumber 4 in thick, 8 in and wider, tabulated bending design values F_b shall be permitted to be multiplied by the size factor C_F = 1.1. For dimension lumber wider than 12 in, tabulated bending, tension, and compression parallel-to-grain design values for 12-in-wide lumber shall be multiplied by the size factor C_F = 0.9.

SOURCE: Table used by permission of the American Forest & Paper Association.

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