Spruce-Pine-Fir (S-P-F)

Spruce-Pine-Fir Abbr: S-P-F Design values are in pounds per square inch (psi)
		Bending	Tension parallel to grain	Shear parallel to grain	Comp. perp. to grain	Comp. parallel to grain	Modulus of Elasticity
Grade	Size	F_b	F_t	F_v	F_c perp	F_c	E	E_min
Select Structural	2x2	1875	1050	135	425	1610	1,500,000	550,000
	2x3
	2x4
	2x6	1625	910			1540
	2x8	1500	840			1470
	2x10	1375	770			1400
	2x12	1250	700			1400
No.1 & No.2	2x2	1310	675	135	425	1320	1,400,000	510,000
	2x3
	2x4
	2x6	1135	585			1265
	2x8	1050	540			1205
	2x10	960	495			1150
	2x12	875	450			1150
No.3	2x2	750	375	135	425	745	1,200,000	440,000
	2x3
	2x4
	2x6	650	325			715
	2x8	600	300			680
	2x10	550	275			650
	2x12	500	250			650

These size adjusted values are intended for use by qualified designers and can be used in conjunction with the appropriate adjustment factors from the tables in the PDF below. These tables are the same as the ones shown on the page "Design Values for Canadian Species used in the U.S."

PDF document Download the four tables of adjustment factors.

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Canadian Wood Council Members