![]() 2 Stress grade, and wet service conditions. Note: The span chart below is an example of how spans charts are presented. Because building code and lumber spans are updated from time to time, you should always check to make sure the span chart you are using is up to date. See the applicable code section, or the NDS to confirm the span chart you are using is correct.ĭimensional Lumber Deck Beam Spans Supporting a Single Span of Joists with or without Overhangs:Īssumes 40 psf live load, 10 psf dead load, L/360 simple span beam deflection limit, cantilever length L/180 deflection limit, No. Step 2 Span Table: Select the appropriate table in Span Tables for Joists and Rafters. These tables are from the ICC International Residential Code. Live loads and deflection limits are set by code. This data should not be used for look-alike or substitute products. This sets an allowable first-floor live load of 40 psf, a dead load of 10 psf, and a deflection of L/360. The longer the joist, the more area of deck the joist supports, and thus the beam supports more area as well. Wesbeam e-beam Span Tables Roof Members Rafters 4 Roof Beams 6 Strutting Beams 8 Strutting-Counter Beams 10 Strutting-Hanging Beams 11 Counter Beams 12 Verandah Beams 13 Wall Members. In addition, many residents prefer the fell of a deck that is designed for higher loads. Building codes for residential decks only require 40 psf in some areas, but check your local requirements to make sure you are aware of any additional local guidelines. 1 1/2 VERSA-LAM 1.7 2650 Joists Residential Floor Span Tables LVL-18: Tech Note: View: tech-note. Versa-Lam LVL is available in thicknesses from 19 mm (3/4 inch) to 89 mm (3-1/2 inches), widths of 89 mm (3-1/2 inches) to 1,219 mm (48 inches) and lengths up to 24 m (80 feet). Versa-Lam LVL beams and headers won’t twist, shrink, or geteilt. Beam span maximums are based on a maximum anticipated live load as well as other factors. Versa-Lam® LVL is made with veneer sheets of various species and grades in accordance with the in-plant manufacturing standards approved by APA. Fewer posts on upper-level decks are typically more desirable to the occupants and this drives the use of larger framing materials for longer spans. ![]() The span of a beam is dependent on a few variables: The grade and species of lumber, size of lumber and the load it carries.
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