LVL Beam Span Calculator
Calculate the optimal LVL (Laminated Veneer Lumber) beam size for your construction project. This professional calculator considers load requirements, span distances, and safety factors to provide accurate beam sizing recommendations.
Calculation Results
LVL Beam Specifications
Microllam LVL
- Thickness: 1.75″ standard
- Depths: 5.5″ to 20″
- Fb: 2,900 psi
- E: 2,000,000 psi
- Fv: 285 psi
Parallam PSL
- Thickness: 3.5″, 5.25″, 7″
- Depths: 9.5″ to 18″
- Fb: 2,900 psi
- E: 2,000,000 psi
- Fv: 290 psi
TimberStrand LSL
- Thickness: 1.75″ to 3.5″
- Depths: 9.25″ to 18″
- Fb: 2,325 psi
- E: 1,550,000 psi
- Fv: 300 psi
Standard LVL
- Thickness: 1.75″ standard
- Depths: 5.5″ to 24″
- Fb: 2,600 psi
- E: 1,800,000 psi
- Fv: 265 psi
Engineering Considerations
Load Duration
Dead loads are permanent, while live loads vary. Snow loads require special consideration in cold climates with factors up to 1.15.
Moisture Content
LVL beams are manufactured at 8-12% moisture content. Wet service conditions may reduce allowable stresses by 15-20%.
Temperature Effects
High temperature exposure (above 150°F) can reduce strength properties. Consider temperature factors for heated areas.
Lateral Support
Continuous lateral support is assumed. Without proper bracing, beam capacity may be reduced significantly.
End Bearing
Minimum bearing length of 3.5″ is typically required. Longer spans may need increased bearing lengths for proper load transfer.
Multiple Plies
When using multiple plies, proper bolting and gluing connections are essential for composite action and full capacity.
Engineering References
- American Wood Council. (2018). National Design Specification for Wood Construction (NDS). American Wood Council, Leesburg, VA.
- International Code Council. (2021). International Building Code (IBC). International Code Council, Country Club Hills, IL.
- APA – The Engineered Wood Association. (2019). Engineered Wood Construction Guide. APA, Tacoma, WA.
- American Society of Civil Engineers. (2016). Minimum Design Loads and Associated Criteria for Buildings and Other Structures (ASCE/SEI 7-16). ASCE, Reston, VA.
- Forest Products Laboratory. (2010). Wood Handbook: Wood as an Engineering Material. U.S. Department of Agriculture, Forest Service, Madison, WI.