StrucJoist SJ-32-42-55 (Willamette)

StrucLam Design Stresses¹
LVL Grade	Modulus of Elasticity (x10⁶psi)	Flexure² Fb (psi)	Tension Ft (psi)	Compression (psi)		Horizontal Shear Fv (psi)
				F_cII	F_cl
2.0E 1.8E	2.00 1.80	2950 2600	1900 1700	2750 2400	700 700	285 285

Adjustments to allowable design stresses, except for E and F_c l are permitted in accordance with the applicable code.
Flexural Stress must be modified by the depth effect formula: C_d=12/d ^1/7.5 d=depth, 3-1/2" minimum

2.0E StrucLam Design Properties Table 1-3/4" Width
Depth In.	Weight PLF	Allowable Shear Lbs			Allowable Moment Ft-lbs			El
		Allowable Shear Lbs			Allowable Moment Ft-lbs			(x10⁶)
		100%	115%	125%	100%	115%	125%	In² Ib.
7-1/4"	3.30	2411	2773	3014	4030	4635	5038	111
9-1/4"	4.22	3076	3537	3845	6352	7304	7939	231
9-1/2"	4.33	3159	3633	3949	6676	7677	8345	250
11-1/4"	5.13	3741	4302	4676	9153	10526	11441	415
11-7/8"	5.41	3948	4540	4935	10125	11644	12657	488
14"	6.38	4655	5353	5819	13767	15833	17209	800
16"	7.29	5320	6118	6650	17665	20315	22081	1195
18"	8.20	5985	6883	7481	22008	25309	27510	1701

1.8E StrucLam 1-3/4" Width
Depth In.	Weight PLF	Allowable Shear Lbs			Allowable Moment Ft-lbs			El (x10⁶) In² Ib.
Depth In.	Weight PLF	100%	115%	125%	100%	115%	125%	El (x10⁶) In² Ib.
7-1/4"	3.30	2411	2773	3014	3552	4085	4440	100
9-1/4"	4.22	3076	3537	3845	5598	6438	6998	208
9-1/2"	4.33	3159	3633	3949	5884	6767	7355	225
11-1/4"	5.13	3741	4302	4676	8067	9277	10084	374
11 -7/8"	5.41	3948	4540	4935	8924	10263	11155	440
14"	6.38	4655	5353	5819	12134	13954	15168	720
16"	7.29	5320	6118	6650	15569	17904	19461	1075
18"	8.20	5985	6883	7481	19397	22307	24246	1531

Maximum Resistive Moment Values have been modified by the depth effect formula C_d shown above.

Connections For Multiple StrucLam¹
Capacity (plf) for Side Loaded Beams^3,6 (See note 2 for Top Loaded Beams)
	Nailed Connection		Through Bolted Connection
No. of pieces	2 rows 16d common wire at 12" o.c.	3 rows 16d common wire at 12" o.c.	2 rows 1/2" bolts at 24" o.c. staggered	2 rows 1/2" bolts at 12" o.c. staggered	2 rows 1/2" bolts at 6" o.c. staggered
2 3	560 420	840 630	600 450	1200 900	2400 1800
4	Not Recommended		Should only be used when loads are applied to both sides of the members.
	Not Recommended		400	800	1600

1. Table values are based on 1 3/4" thick StrucLam. Verify the adequacy of the beam to support imposed loads.

2. Minimum connection requirements. Use for top loaded beams.

11- 7/8" deep (Maximum).

Minimum of 2 rows 16d common at 12" o/c.

14", 16" & 18" deep.

Minimum of 3 rows 16d common at 12" o/c.

3. Values listed are for 100% load duration. Increase 15% for snow loaded roof conditions; 25% for non-snow roof conditions.

4. For 3 piece members, nailing specified is for both sides.

5. Bolt holes should be drilled 1/32" (min.) to 1/16" (max.) larger than the bolt diameter. Locate bolts a minimum 2" from the top and bottom of the beam.

6. Table values assume uniform loads to multiple members. Concentrated loads from one side require additional considerations. Contact Willamette Industries Technical Support.

StrucJoist SJ-32-42-55 - Page 33