2007-02-25 05:31:11 · 4 answers · asked by Lisa B 1 in Home & Garden ➔ Maintenance & Repairs
Floor joist systems are engineered for bending, shear, deflection, and bearing. Normal spacings are 12" to 16". Span is a consideration, as well as support. Cantilevered joist are usually spaced closer; end supported joist a little farther apart.
Joist material is also a consideration when specifying spacing. Obviously, a 2 x 12 joisted floor can be spaced at greater intervals than a 2 x 6 joisted floor!
When in doubt, space them 12".
2007-02-25 06:58:16 · answer #1 · answered by Hank 3 · 0⤊ 0⤋
Most common spacings are 16" and 24". The thing to look for is how the sub is fastened to the joists. If nailed, look for a pattern of nails about 8" apart. Any further than that and the have a tendancy to work loose because of flex. Preferably the subfloor is fastened with glue on the jousts, and then screwed down. Also make sure that the sub floor is at least 3/4 of an inch material. I have run into at least 2 jobs where 1/2" material was used. Not enough strength!
2016-03-16 00:49:10 · answer #2 · answered by Anonymous · 0⤊ 0⤋
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2014-08-17 03:18:48 · answer #3 · answered by Anonymous · 0⤊ 0⤋
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2015-01-25 08:41:07 · answer #4 · answered by Anonymous · 0⤊ 0⤋
Usually 16 in. on center but if the home is a prefabricated home, it is likely they are 24 in apart from each other.....go in your basement or attic on look there...goodluck
2007-02-25 05:40:21 · answer #5 · answered by j917p 3 · 0⤊ 0⤋
16 inches (unless called for specifically for 12 inch but thats extremely rare)
2007-02-25 05:35:42 · answer #6 · answered by liesunspoken 1 · 0⤊ 0⤋
most commonly 16 inches on center
2007-02-25 05:34:35 · answer #7 · answered by mrs_pipesmoker 7 · 1⤊ 0⤋