Asked by: Nashira Puribusiness and finance construction industry
How wide apart should decking joists be?
Last Updated: 23rd February, 2020
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Similarly, you may ask, how far apart should deck joists be?
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.
Similarly, 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.
Just so, how far apart are decking bearers?
Due to the proximity to the ground, ventilation is very important. For this reason, the perimeter of the deck should be kept open. For decking, a minimum spacing between boards of 5 mm is recommended.
What size lumber can span 20 feet?
Max. Live Load 60 lbs/ft2 (2873 N/m2)
|Maximum Span (ft - in)|
|Nominal Size (inches)||Joist Spacing Center to Center (inches)||Lumber Grade|
|2 x 12||24||13' - 2"|
|2 x 14||12||20' - 10"|
|16||18' - 0"|