Joist Span Calculator | Thumb rule for joists span | Joists spacing | How to size the joists
Thumb rule for joist sizing as per span:A common rule of thumb for joist sizing based on span is:For joists spaced 16 inches on center (O.C.): The span in feet should be no more than 1.5 times the depth in inches.
This can be summarized with the formula:
Maximum span (in feet) =1.5 × joist depth (in inches).
Here's a quick reference for typical joist depths:
2x6 joists: Can span up to 9 feet
2x8 joists: Can span up to 12 feet
2x10 joists: Can span up to 15 feet
2x12 joists: Can span up to 18 feet
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17 июн 2024