2x8 or 2x10 deck beam

Should I use 2x8 or 2x10 for deck construction? | DIY Home .

With 2x10 joists 16 OC the max span is 13'7" so if you put the beam at 13' you would have 3' over cantilever. it works according to the the residential deck guide. With that said, I'd go 2x8 as you have illustrated with a beam in the middle. It will be stiffer.

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Should I use 2x8 or 2x10 for deck? - AskingLot.com

2x8 for joists will be fine, with 16" OC. Should use 2x10 for beams but 2x8 will be fine as well. If you are worried you can triple the 2x8 for the beams but double will be sufficient. You should put the beams at 7 and 14 feet out from the house, with the piers you should do 3 per beam with spacing of 1, 7, 13.

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Deck Joist Sizing & Spacing | Decks.com | Decks.com by Seven Trust

In general terms, joists spaced 16 inches on center can span 1.5 times in feet their depth in inches. A 2x8 up to 12 feet; 2x10 to 15 feet and 2x12 to 18 feet. The larger the deck, the larger the joists.

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Deck Beam & Header Span Table | Decks.com by Seven Trust

In addition, many residents prefer the fell of a deck that is designed for higher loads. The longer the joist, the more area of deck the joist supports, and thus the beam supports more area as well. Dimensional Lumber Deck Beam Span Chart. Note: The span chart below is an example of how spans charts are presented.

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How to Build a Stronger Deck Beam for a Sturdy Outdoor Space .

Many older decks were built using massive timbers, such as 4x6s or 4x8s, for beams, which support the underside of the deck horizontally. Some builders still do it that way, as using a one-piece beam can save time. But large timbers are heavy and hard to handle, and over time, exposure to the elements can cause them to warp or crack beyond repair.

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Sample Calculations for Using Joist Span and Beam Size

With a 12’ deck span, the beam may be either two 2x8s or two . 2-2x8 2-2x10 2-2x10 2-2x12 2-2x10 2-2x12 2-2x10 3-2x10 6’ Corner Footing Intermediate Footing

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