Asked by: Bozhana Grodzensky
asked in category: General Last Updated: 21st January, 2020

How far apart should my joists be for decking?

16 inches

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Hereof, how do you space deck joists?

Deck Joist Spacing. For residential decking, the space between deck joists should never exceed 16 inches as measured on center (16 inches between the center of adjacent joist boards). If you prefer a more rigid feel, opt for 12 inches spacing on center. For commercial applications, 12 inches on center is the standard.

Likewise, how far apart should decking joists be UK? 28mm thick deckboards can be laid on joists with 600mm spacing - though for higher level decks, this should be reduced to 500mm centres. Composite deck boards will require the joist spacings to be closer than this. Smaller joists - say 4x2 will need to be positioned at 450mm or 500mm between each decking joist.

Considering this, how far can 2x6 decking span?

Decking boards span from joist to joist. If you use 5/4 decking, joists must be no farther apart than 16 inches. Decking made of 2x4s or 2x6s can span up to 24 inches.

How much space do you need between decking?

Overall, conventional decking profiles should be installed such that when seasoned, will have gaps between 1/8 and 1/4 of an inch. Look at the ends of the boards and install the decking "barkside" up to prevent cupping. Install decking with 3" pressure-treated compatible deck screws instead of nails.

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