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1 ½" Versa-Lam® LVL 1.8E 2650 Joists Residential Floor Span Tables (US)

 

40 PSF Live Load / 15 PSF Dead Load – Glue & Nail Floor Sheathing

 

O.C.

Spacing

L/480 Live Load Deflection

7 1/4"9 1/4"9 1/2"11 1/4"11 7/8"14"
12"14' 3''17' 5''18' 5''21' 7''22' 9''26' 7''
16"13' 2''16' 6''16' 11''19' 10''21' 0''24' 5''
19.2"12' 6''15' 8''16' 1''18' 10''19' 10''23' 2''
24"11' 9''14' 10''13' 6''16' 0''16' 11''19' 11''

O.C.

Spacing

L/360 Live Load Deflection

7 1/4"9 1/4"9 1/2"11 1/4"11 7/8"14"
12"15' 9''19' 9''20' 4''23' 10''25' 1''29' 2''
16"14' 3''18' 3''18' 8''21' 11''23' 1''27' 0''
19.2"13' 10''17' 4''17' 9''20' 10''21' 11''25' 7''
24"13' 0''14' 5''14' 10''17' 7''18' 7''21' 11''

 

  • Span tables are based on a residential floor load of 40 psf live load and 15 psf dead load plus the Versa-Lam joist weight.
  • Span lengths are a clear span distance.
  • Span table are based upon the listed live load deflection and L/240 total load deflection.
  • Span listed in red text exceed 1.0 inches in total deflection.
  • Repetitive loading increase has been included, where applicable.
  • Values represent worst case of simple or continuous spans.
  • Span tables assume that min. 23/32" structural wood panel sheathing is attached with construction adhesive and fasteners required per building code.

 

 

Versa‐Lam® LVL Allowable Stress Values

Design PropertyGrade

Modulus of Elasticity

True (Shear‐Free)

Modulus of Elasticity

Apparent

Modulus of Elasticity

for Stability

BendingHorizontal ShearTension Parallel to Grain

Compression Parallel

to Grain

Compression Perpendicular

to Grain

Equivalent Specific Gravity for Fastener Design

E

(x 106 psi) (1)(7)

E

(x 106 psi) (1)

Emin

(x 106 psi)(1)(8)

Fb

(psi)(2)(3)

Fv

(psi)(2)(4)

Ft

(psi)(2)(5)

Fc‖

(psi)(2)

Fcꓕ

(psi)(1)(6)

(SG)
Versa‐Lam® LVL Joists1.8E 26501.81.71.12650285165030007500.5
  1. This value cannot be adjusted for load duration.
  2. This value is based upon a load duration of 100% and may be adjusted for other load durations.
  3. Fiber stress bending value shall be multiplied by the depth factor, (12/d)(1/9) where d = member depth [in].
  4. Stress applied perpendicular to the gluelines.
  5. Tension value shall be multiplied by a length factor, (4/L)(1/8) where L = member length [ft]. Use L = 4 for members less than four feet long.
  6. Stress applied parallel to the gluelines.
  7. True or shear‐free modulus of elasticity does not account for shear deformation.
  8. Emin is the reference modulus of elasticity for beam and column stability calculations. It is calculated using Eapparent in accordance with Appendix D of the 2018 NDS. When calculating Emin, the coefficient of modulus of elasticity, COVE, may be taken as 0.10, and the adjustment factor to convert E to a pure bending
    analysis may be taken as 1.05.

* Design properties are limited to dry conditions of use where the maximum moisture content of the material will not exceed 16%.

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