Yes, a triple 2x10 beam can span 18.5 feet for a patio roof. According to the International Residential Code (IRC), a triple 2x10 beam with southern pine posts and 2x6x10 joists can span up to 20 feet. The IRC also specifies that the maximum live load for a patio roof is 30 pounds per square foot.
In general, a triple 2x12s beam may normally span up to 14 feet with uniformly distributed loads. Assuming that the triple 2x12s beam is made of #2 southern yellow pine and is supported by 2x4 studs or joists spaced at 16 inches on center, the maximum load capacity for an 11ft span is approximately 9,500 lbs.
For example, a 2x6 joist would have a 12-foot, 6-inch maximum span, and a 2x10 joist would have a 21-foot maximum span. Additionally, wood species and grading determines how far apart floor joists can be spaced. Harder woods can be spaced farther apart, and can be cut into larger joists.
Some manufacturers limit their beams to 60' due to transportation issues, while others have the capability to manufacture beams up to 80' long. So, the longest unsupported span possible using LVL would be 80-feet. Typically, though, it is common for a continuous LVL span to be between 20' and 30'.
A (3)2x10 Hem-Fir Beam can span 18'-0" without any load on it. This means that no joists or walls are bearing on the beam at all. If any joists or walls are bearing on the beam, it cannot span 18'-0".
With a 12' deck span, the beam may be either two 2X8's or two 2X10's, depending on the wood used.
11–7/8″ TJI can easily span that distance. 2″ x 12″ at 16″ o/c can also span that safely.
Dead Load: A 2×10 can typically support around 1,000 to 1,500 pounds of dead load over a 6 to 8-foot span. Live Load: For live loads, it could hold approximately 500 to 1,000 pounds depending on the wood species and grade.
Your approximate limit for the quadruple 2x10 would be a clear span of 9'.
As a rule of thumb - divide the span by 18–22 to get a safe and suitable depth (depending on rib spacing and the expected load). 30 Feet is a long span (that's almost 10 meters) — assuming it is for a regular residential building, you will need a set of 4″X16″ logs spaced at 20″ minimum.
A 4 ply 2x12 beam can span 20 feet, but it is important to consider the load that the beam will be supporting. If the load is too heavy, the beam may sag or even fail.
A triple 2x12 beam can typically span 15 to 18 feet for floor applications with standard residential loads. For roof or ceiling applications, it may span 12 to 14 feet. The span depends on factors like wood type, load, and deflection limits. Always consult a structural engineer for precise calculations.
As shown in the table below, a single 2x10 beam can span 6 feet while carrying 2x8s spanning 8 feet and cantilevering another 2 feet. Lesson: When beam spans are less than 8 feet, you may be able to use a single-ply beam.
The thickness of the beam will depend on the span of the beam and the load that it will be supporting. For a span of 14 to 16 feet and a typical live load, a good starting point would be an 8-10" LVL beam.
Yes, a triple 2x10 beam can span 18.5 feet for a patio roof. According to the International Residential Code (IRC), a triple 2x10 beam with southern pine posts and 2x6x10 joists can span up to 20 feet. The IRC also specifies that the maximum live load for a patio roof is 30 pounds per square foot.
As the table shows, no 2×8's meet the span and spacing requirements, but a 2×10 with an E of 1,300,000 psi and Fb of 1093 psi can span 15 feet 3 inches – more than enough. A 2×12 with an E of 800,000 psi and Fb of 790 psi also works, since it can span 15 feet and 10 inches.
You can use a W8x28 (50 ksi) steel beam. The beam is 6.5” wide and 8” deep. It weighs 28 pounds per foot of beam length. You will need to have a local engineer detail your connections, size your support columns and determine foundation requirements.
2x4 11'-6" 2x6 17'-0" 2x8 21'-8" 2x10 25'-7" 24" O.C.
In general a double 2x beam can support a span in feet equal to its nominal width in inches. A double 2x10 can thus span 10 feet.
With a 12' deck span, the beam may be either two 2x8s or two 2x10s, depending on wood used. and footing sizes.
OSHA Load Requirements for Scaffold Boards
According to the Appendix, using the typical 7' span between the frames with the 2X10 nominal thickness lumber will not achieve the 50 pounds/square foot rating in terms of board capacity. The maximum allowable span between the frames with this type of board is 6'.