Northern Species (N)

Northern Species Abbr: Northern or N 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	1500	675	110	350	1265	1,100,000	400,000
	2x3
	2x4
	2x6	1300	585			1210
	2x8	1200	540			1155
	2x10	1100	495			1100
	2x12	1000	450			1100
No.1 & No.2	2x2	900	410	110	350	975	1,100,000	400,000
	2x3
	2x4
	2x6	780	355			935
	2x8	720	330			890
	2x10	660	300			850
	2x12	600	275			850
No.3	2x2	525	225	110	350	575	1,000,000	370,000
	2x3
	2x4
	2x6	455	195			550
	2x8	420	180			525
	2x10	385	165			500
	2x12	350	150			500

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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