Content page

From [Institution name]

Product Specified Strengths (MPa)^{Footnote (4)} ^{Footnote (5)} ^{Footnote (6)}
Grade	Bending, F_b MPa (psi)		Tension Parallel to Grain F_t^{Footnote (3)} MPa (psi)	Compression Parallel to grain, F_c║ MPa (psi)	Compression Perpendicular to grain, F_c ┴ MPa (psi)		Horizontal Shear, F_v MPa (psi)		Modulus of Elasticity^{Footnote (7)} MPa (x 10⁶ psi)
Grade	Beam	Plank	Tension Parallel to Grain F_t^{Footnote (3)} MPa (psi)	Compression Parallel to grain, F_c║ MPa (psi)	Beam	Plank	Beam	Plank	Beam	Plank
1 400F_b-1.1E (cross-ply)	17.84^{Footnote (1)} (2 587)	17.84 (2 587)	12.38 (1 796)	18.71 (2 713)	8.53 (1 238)	5.66 (820)	3.20 (465)	0.784 (114)	7 580 (1.10)	6 900 (1.00)
1 650F_b-1.3E (cross-ply)	21.02^{Footnote (1)} (3 049)	21.02 (3 049)	12.38 (1 796)	18.71 (2 713)	8.53 (1 238)	5.66 (820)	3.20 (465)	1.79 (260)	8 960 (1.30)	7 580 (1.10)
1 750F_b-1.3E (cross-ply)	22.30 ^{Footnote (1)} (3 234)	22.30 (3 234)	12.38 (1 796)	18.71 (2 713)	8.53 (1 238)	5.66 (820)	3.20 (465)	1.79 (260)	8 960 (1.30)	8.960 (1.30)
2 250F_b-1.5E	28.67^{Footnote (2)} (4 158)	28.03 (4 066)	13.93 (2 021)	25.86 (3 751)	9.41 (1 365)	5.66 (820)	3.65 (530)	1.79 (260)	10 340 (1.50)	9 650 (1.40)
2 400F_b-1.7E	30.58^{Footnote (2)} (4 435)	29.31 (4 250)	13.93 (2 021)	25.86 (3 751)	9.41 (1 365)	5.66 (820)	3.65 (530)	1.79 (260)	11.720 (1.70)	11 720 (1.70)
2 650F_b-1.9E	33.77^{Footnote (2)} (4 897)	33.13 (4 805)	16.51 (2 395)	25.86 (3 751)	9.41 (1 365)	6.90 (1 001)	3.65 (530)	1.79 (260)	13 100^{Footnote (8)} (1.90)	12 410^{Footnote (8)} (1.80)
2 900F_b-2.0E	36.95^{Footnote (2)} (5 359)	37.59 (5 452)	18.58 (2 694)	35.21 (5 107)	9.41 (1 365)	6.90 (1 001)	3.65 (530)	1.79 (260)	13 790 (2.00)	13 790 (2.00)
2 950F_b-2.0E	37.59^{Footnote (2)} (5 452)	37.59 (5 452)	18.58 (2 694)	35.21 (5 107)	9.41 (1 365)	6.90 (1 001)	3.72 (540)	1.79 (260)	13 790^{Footnote (8)} (2.00)	13 790^{Footnote (8)} (2.00)
3 100F_b-2.1E	39.50^{Footnote (2)} (5 729)	39.50 (5 729)	18.58 (2 694)	35.21 (5 107)	9.41 (1 365)	6.90 (1 001)	3.72 (540)	1.79 (260)	14 480 (2.10)	13 790 (2.00)
3 100F_b-2.2E	39.50^{Footnote (2)} (5 729)	37.59 (5 452)	18.58 (2 694)	35.21 (5 107)	9.41 (1 365)	6.90 (1 001)	3.72 (540)	1.79 (260)	15 170 (2.20)	15 170 (2.20)

Notes:

Footnote 1

The specified bending strength, F_b, is assigned for a standard depth of 305 mm (12 in.). For other product depths, multiply F_b as follows:

For thicknesses < 32 mm (1 ¼ in.): multiply F_b by (305/depth in mm)^0.323 [(12/depth in in.)^0.323]. For depths < 89 mm (3 ½ in.), multiply F_b by 1.488.
For thicknesses ≥ 32 mm (1 ¼ in.): multiply F_b by (305/depth in mm)^0.261 [(12/depth in in.)^0.261]. For depths < 89 mm (3 ½ in.), multiply F_b by 1.379.

Return to footnote 1 referrer

Footnote 2

The specified bending strength, F_b, is assigned for a standard depth of 305 mm (12 in.). For depths greater than 305 mm (12 in.), multiply F_b by (305/depth in mm)^0.143 [(12/depth in in.)^0.143]. For depths less than 305 mm (12 in.), multiply F_b by (305/depth in mm)^0.111 [(12/depth in in.)^0.111]. For depths less than 89 mm (3 ½ in.), multiply F_b by 1.147.

Return to footnote 2 referrer

Footnote 3

The specified tension strength, F_t, is assigned for a standard length of 6 096 mm (20 ft.). For lengths other than 6 096 mm (20 ft.), multiply F_t by (6 096/length in mm)^0.111 [(20/length in ft.)^0.111]. For lengths less than 914 mm (3 ft.), use the value adjusted for 914 mm (3 ft.).

Return to footnote 3 referrer

Footnote 4

Specified design stresses in Table 4.1.1 are for standard term load duration and must be adjusted (with the exception of modulus of elasticity) using load duration factors as per CSA O86.

Return to footnote 4 referrer

Footnote 5

Specified design stresses in Table 4.1.1 apply to product installation conditions that are dry, well-ventilated and covered. Dry conditions are product installation conditions where ambient moisture content is 15% or less.

Return to footnote 5 referrer

Footnote 6

All specified strengths are in accordance with CSA O86.

Return to footnote 6 referrer

Footnote 7

The modulus of elasticity for all except the 2650F_b-1.9E and 2950F_b-2.0E grades is shear-free, therefore, when calculating deflection, both bending and shear deformation must be included. The following equation may be used for a simple supported loading condition under a uniform load:

$Δ = \frac{5 w L^{4}}{384 E I} + \frac{2.4 w L^{2}}{E b d}$

Δ = deflection (mm)

w = specified uniform load (N/mm)

L = span (mm)

E = modulus of elasticity (shear-free) (MPa)

I = moment of inertia (mm⁴)

b = beam width (mm)

d = beam depth (mm)

Return to footnote 7 referrer

Footnote 8

The modulus of elasticity for the 2650F_b-1.9E and 2950F_b-2.0E grades is the apparent MOE which includes the effects of shear deformation, therefore, when calculating the deflection, only the bending deformation has to be included. The second term of the equation in Note 7 may be ignored.

Return to footnote 8 referrer

Equivalent Specific Gravity for the Product Fastener Design^{Footnote (1)} ^{Footnote (2)}
Grade	Equivalent Specific Gravity
	Nails				Bolts and Lag Screws Installed in Face^{Footnote (3)}
	Withdrawal Load		Lateral Load		Lateral Load
	Installed in Edge	Installed in Face	Installed in Edge	Installed in Face	Load Applied ║to Grain	Load Applied ┴ to Grain
1400F_b-1.1E (cross-ply)	0.42	0.48	0.49	0.50	0.41	0.48
1750F_b-1.3E (cross-ply); 2250F_b-1.5E & better	0.46	0.50	0.50	0.50	0.46	0.50

Product Nail Spacing Requirements^{Footnote (1)}
Thickness (mm (in.))	Orientation	Fastener^{Footnote (2)}	Minimum End Distance (mm (in.))	Closest On-Centre Spacing (mm (in))
Thickness (mm (in.))	Orientation	Fastener^{Footnote (2)}	Minimum End Distance (mm (in.))	Single Row	Multiple Rows^{Footnote (6)} ^{Footnote (7)}
< 38 (< 1 ½)	Edge^{Footnote (3)} ^{Footnote (4)}	64 mm (8d 2 ½ in)	64 (2 ½)	102 (4)	N/A
		76 mm (10d 3 in) & 83 mm (12d 3 ¼ in)	64 (2 ½)	102 (4)	N/A
		89 mm (16d 3 ½ in)	89 (3 ½)	127 (5)	N/A
< 38 (< 1 ½)	Face^{Footnote (5)}	64 mm (8d 2 ½ in)	38 (1 ½)	76 (3)	76 (3)
		76 mm (10d 3 in) & 83 mm (12d 3 ¼ in)	38 (1 ½)	76 (3)	76 (3)
		89 mm (16d 3 ½ in)	38 (1 ½)	127 (5)	127 (5)
≥ 38 (≥ 1 ½)	Edge^{Footnote (3)} ^{Footnote (4)}	64 mm (8d 2 ½ in)	64 (2 ½)	76 (3)	102^{Footnote (8)} (4^{Footnote (8)})
		76 mm (10d 3 in) & 83 mm (12d 3 ¼ in)	64 (2 ½)	102 (4)	127^{Footnote (8)} (5^{Footnote (8)})
		89 mm (16d 3 ½ in)	89 (3 ½)	127 (5)	152^{Footnote (8)} ^{Footnote (9)} (6^{Footnote (8)} ^{Footnote (9)})
≥ 38 (≥ 1 ½)	Face^{Footnote (5)}	64 mm (8d 2 ½ in)	38 (1 ½)	76 (3)	76 (3)
		76 mm (10d 3 in) & 83 mm (12d 3 ¼ in)	38 (1 ½)	76 (3)	76 (3)
		89 mm (16d 3 ½ in)	38 (1 ½)	127 (5)	127 (5)

Notes:

Footnote 1

Fastener sizes and closest spacing not specifically described in this Table are beyond the scope of this Report.

Return to footnote 1 referrer

Footnote 2

Fasteners are common wire or common spiral nails.

Return to footnote 2 referrer

Footnote 3

Edge distance must be sufficient to prevent splitting, but not less than permitted in CSA O86.

Return to footnote 3 referrer

Footnote 4

Nail penetration for edge nailing must not exceed 51 mm (2 in.) for 89-mm (16d 3½ in.) nails and 64 mm (2½ in.) for 76-mm (10d 3 in.) and 83-mm (12d 3¼ in.) nails.

Return to footnote 4 referrer

Footnote 5

The tabulated closest on-centre spacing for face orientation is applicable to nails that are installed in rows that are parallel to the direction of the LVL grain (length). For nails that are installed in rows that are perpendicular to the direction of the LVL grain (width/depth), the closest on-centre spacing for face orientation must be as per CSA O86.

Return to footnote 5 referrer

Footnote 6

For multiple rows of nails, the rows must be offset 13 mm (½ in.) or more from each other, and staggered.

Return to footnote 6 referrer

Footnote 7

For multiple rows of nails, rows must be equally spaced from the centre line of the product's edge or face (whichever applies).

Return to footnote 7 referrer

Footnote 8

The minimum nail spacing is tabulated for LVL manufactured from the Sutherlin, Oregon, USA plant (mill number 1089). The minimum nail spacing may be reduced by 25 mm (1 in.) for LVL manufactured from the Golden, BC, and Wilmington, NC, USA plants (mill numbers 1077 and 1066).

Return to footnote 8 referrer

Footnote 9

Minimum nail spacing may be reduced by 25 mm (1 in.) for 44 mm (1 ¾ in.) thick (or greater) LVL manufactured from the Sutherlin, Oregon, USA plant (mill number 1089).

Return to footnote 9 referrer

Product Factored Resistances for Rim Board^{Footnote (1)} ^{Footnote (2)} ^{Footnote (3)} ^{Footnote (6)}
Minimum Thickness (mm (in.))	Grade	Depth (mm (in.))	Vertical Load		Horizontal Lateral Load Transfer Capacity^{Footnote (4)} (kN/m (lbs/ft.))	Lateral Resistance of 13-mm (1/2-in) Lag Screw^{Footnote (5)} (Installed in Face) (kN (lbs))
Minimum Thickness (mm (in.))	Grade	Depth (mm (in.))	Uniform (kN/m (lbs/ft.))	Concentrated Load (kN (lbs))
32 (1 ¼)	1400F_b-1.1E (cross-ply)	≤ 406 (≤ 16)	195 (13 344)	31.2 (7 022)	4.76 (326)	3.34 (751)
32 (1 ¼)	1400F_b-1.1E (cross-ply)	≤ 610 (≤ 24)	123 (8 457)	31.2 (7 022)	4.76 (326)	3.34 (751)
32 (1 ¼)	1750F_b-1.3E (cross-ply)	≤ 406 (≤ 16)	204 (13 970)	31.2 (7 022)	4.76 (326)	3.34 (751)
32 (1 ¼)	1750F_b-1.3E (cross-ply)	≤ 610 (≤ 24)	123 (8 457)	31.2 (7 022)	4.76 (326)	3.34 (751)
38 (1 ½)	2250F_b-1.5E and better	≤ 406 (≤ 16)	97 (6 650)	20.0 (4 500)	4.76 (326)	3.34 (751)
38 (1 ½)	2250F_b-1.5E and better	≤ 610 (≤ 24)	60.6 (4 150)	20.0 (4 500)	4.76 (326)	3.34 (751)
44 (1 ¾)	2250F_b-1.5E and better	≤ 406 (≤ 16)	108 (7 400)	23.8 (5 350)	4.76 (326)	3.34 (751)
44 (1 ¾)	2250F_b-1.5E and better	≤ 610 (≤ 24)	83.9 (5 750)	23.8 (5 350)	4.76 (326)	3.34 (751)

Notes:

Footnote 1

The factored resistances are for the rim board only when under standard term and dry service loading; therefore, adjustment is permitted for other load durations in accordance with CSA O86. The compressive resistance of the sill plate and the sheathing also needs to be checked in accordance with CSA O86.

Return to footnote 1 referrer

Footnote 2

The horizontal lateral load transfer resistance is for shear forces parallel to the rim joist under short-term loading and dry service conditions only. The fastening of the floor must meet or exceed Part 9 of Division B of the NBC 2010.

Return to footnote 2 referrer

Footnote 3

See Table 4.1.3 for minimum nail spacing requirements.

Return to footnote 3 referrer

Footnote 4

The nailing schedule for sheathing to rim is based on 51-mm (6d 2 in.) nails at 150 mm (6 in.) o.c., and for rim board to sill plate (toe-nailed) is based on 64-mm (8d 2 ½ in.) nails at 150 mm (6 in.) o.c. Values assume that floor joists or blocking are fastened to the rim board and sill plate at a maximum of 610 mm (24 in.) o.c. as per Part 9 of Division B of the NBC 2010. Commercial framing connectors may be used to achieve lateral load capacities exceeding the values in this table. Calculations must be based on the equivalent specific gravity listed in Table 4.1.2 and must not exceed the nail spacing requirements of Table 4.1.3.

Return to footnote 4 referrer

Footnote 5

Lag screw lateral resistance values are based on a 38-mm- (1 ½ in.) thick side member with full penetration of the lag screw.

Return to footnote 5 referrer

Footnote 6

For use with the limit states design procedures of the NBC 2010 and CSA O86.

Return to footnote 6 referrer

Language selection

Search

Content page