Construction workers on a construction site
remodeling a house use this table.
Table for Maximum Joist Spans
Board size (inches)
Load Spacing
2x62x82x102x122x14
(psf) (inches)
Span (feet-inches)
16 11-8 15-4 19-4
10
23-4 25-8
24 10-3 14-6 17-3 20-7 24-0
20
16 10-5 13-11 17-6 21-1 24-0
24 9-2
12-3 15-6 18-7 21-9
30
16 9-9 12-1 16-3 19-6 22-9
24 8-6 11-4 14-4 17-3 20-2
40
16 9-1 12-1 15-3 18-5 21-5
24 7-10 10-4 13-1
15-9 18-5
16
50
8-7 11-6 14-7
20-5
24 7-3 9-6 12-1 14-7 17-0
60 16 8-1 10-10 13-8 16-6
24
19-3
6-8 8-11 11-3 13-7 15-11
70
16 7-8 10-2 12-10
24
15-6 18-3
6-5
8-5 10-7
12-9 15-0
Load is the load or weight the floor must support. Spacing
refers to the space between joists in inches. Span is the
length and/or width of supporting floor.
|
-ATTAI |
17-6
As the spacing between joists increases, the
maximum span for any board size:
A. increases only.
B. decreases only.
C. increases and then decreases.
D. decreases and then increases.
A Report Content Errors
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