Structural SPAN - 24" on Center
Chart for ambient 120°F |
 |
|
| JOIST MODE |
|
JOIST MODE |
| 60 Lb/Sq Foot Live Load |
| 24 Inch Center Distance for Joist |
| 120 Degrees F - Limited by Deflection |
|
|
|
|
|
|
Actual Size |
Maximum Span |
| Size |
Width |
Height |
Inches |
Ft |
| 5/4 x 4 |
1.1 |
3.5 |
26.6 |
2.2 |
| 5/4 x 6 |
1.1 |
5.5 |
41.8 |
3.5 |
| 5/4 x 8 |
1.1 |
7.3 |
55.3 |
4.6 |
| 2 x 4 |
1.5 |
3.5 |
29.5 |
2.5 |
| 2 x 6 |
1.5 |
5.4 |
45.4 |
3.8 |
| 2 x 8 |
1.5 |
7.3 |
61.2 |
5.1 |
| 2 x 10 |
1.5 |
9.25 |
77.3 |
6.4 |
| 2 x 12 |
1.5 |
11.3 |
94.2 |
7.9 |
| 3 x 4 |
2.4 |
3.4 |
33.4 |
2.8 |
| 3 x 6 |
2.4 |
5.5 |
53.8 |
4.5 |
| 3 x 8 |
2.4 |
7.4 |
72.1 |
6 |
| 3 x 10 |
2.4 |
9.3 |
90.3 |
7.5 |
| 3 x 12 |
2.4 |
11.3 |
109.2 |
9.1 |
| 4 x 4 |
3.4 |
3.4 |
37.4 |
3.1 |
| 4 x 6 |
3.4 |
5.4 |
59.1 |
4.9 |
| 4 x 8 |
3.4 |
7.5 |
81.5 |
6.8 |
| 4 x 12 |
3.4 |
11.3 |
121.5 |
10.1 |
| 5 x 5 |
4.4 |
4.4 |
52.4 |
4.4 |
| 6 x 6 |
5.4 |
5.4 |
68.3 |
5.7 |
| 6 x 8 |
5.4 |
7.4 |
92.7 |
7.7 |
| 6 x 12 |
5.4 |
11.3 |
139.2 |
11.6 |
| 8 x 8 |
7.3 |
7.3 |
100 |
8.3 |
| 8 x 10 |
7.3 |
9.3 |
125.9 |
10.5 |
| 10 x 10 |
9.8 |
9.8 |
143.3 |
11.9 |
|
 |
| 100 Lb/Sq Foot Live Load |
| 24 Inch Center Distance for Joist |
| 120 Degrees F - Limited by Deflection |
|
|
|
|
|
| |
Actual Size |
Maximum Span |
| Size |
Width |
Height |
Inches |
Ft |
| 5/4 x 4 |
1.1 |
3.5 |
22.8 |
1.9 |
| 5/4 x 6 |
1.1 |
5.5 |
35.8 |
3 |
| 5/4 x 8 |
1.1 |
7.3 |
47.5 |
4 |
| 2 x 4 |
1.5 |
3.5 |
25.3 |
2.1 |
| 2 x 6 |
1.5 |
5.4 |
38.9 |
3.2 |
| 2 x 8 |
1.5 |
7.3 |
52.6 |
4.4 |
| 2 x 10 |
1.5 |
9.25 |
66.5 |
5.5 |
| 2 x 12 |
1.5 |
11.3 |
81.1 |
6.8 |
| 3 x 4 |
2.4 |
3.4 |
28.7 |
2.4 |
| 3 x 6 |
2.4 |
5.5 |
46.3 |
3.9 |
| 3 x 8 |
2.4 |
7.4 |
62.1 |
5.2 |
| 3 x 10 |
2.4 |
9.3 |
77.8 |
6.5 |
| 3 x 12 |
2.4 |
11.3 |
94.3 |
7.9 |
| 4 x 4 |
3.4 |
3.4 |
32.2 |
2.7 |
| 4 x 6 |
3.4 |
5.4 |
50.9 |
4.2 |
| 4 x 8 |
3.4 |
7.5 |
70.4 |
5.9 |
| 4 x 12 |
3.4 |
11.3 |
105.3 |
8.8 |
| 5 x 5 |
4.4 |
4.4 |
45.1 |
3.8 |
| 6 x 6 |
5.4 |
5.4 |
59 |
4.9 |
| 6 x 8 |
5.4 |
7.4 |
80.4 |
6.7 |
| 6 x 12 |
5.4 |
11.3 |
121.3 |
10.1 |
| 8 x 8 |
7.3 |
7.3 |
87 |
7.3 |
| 8 x 10 |
7.3 |
9.3 |
110 |
9.2 |
| 10 x 10 |
9.8 |
9.8 |
126.1 |
10.5 |
|
| |
|
|
| 150 LB/Sq Foot Live Load |
| 24 Inch Center Distance for Joist |
| 120 Degrees F - Limited by Deflection |
|
|
|
|
|
|
Actual Size |
Maximum Span |
| Size |
Width |
Height |
Inches |
Ft |
| 5/4 x 4 |
1.1 |
3.5 |
20.1 |
1.7 |
| 5/4 x 6 |
1.1 |
5.5 |
31.6 |
2.6 |
| 5/4 x 8 |
1.1 |
7.3 |
41.9 |
3.5 |
| 2 x 4 |
1.5 |
3.5 |
22.3 |
1.9 |
| 2 x 6 |
1.5 |
5.4 |
34.3 |
2.9 |
| 2 x 8 |
1.5 |
7.3 |
46.4 |
3.9 |
| 2 x 10 |
1.5 |
9.25 |
58.7 |
4.9 |
| 2 x 12 |
1.5 |
11.3 |
71.6 |
6 |
| 3 x 4 |
2.4 |
3.4 |
25.3 |
2.1 |
| 3 x 6 |
2.4 |
5.5 |
40.8 |
3.4 |
| 3 x 8 |
2.4 |
7.4 |
54.8 |
4.6 |
| 3 x 10 |
2.4 |
9.3 |
68.8 |
5.7 |
| 3 x 12 |
2.4 |
11.3 |
83.4 |
7 |
| 4 x 4 |
3.4 |
3.4 |
28.4 |
2.4 |
| 4 x 6 |
3.4 |
5.4 |
44.9 |
3.7 |
| 4 x 8 |
3.4 |
7.4 |
61.4 |
5.1 |
| 4 x 12 |
3.4 |
11.3 |
93.3 |
7.8 |
| 5 x 5 |
4.4 |
4.4 |
39.9 |
3.3 |
| 6 x 6 |
5.4 |
5.4 |
52.2 |
4.3 |
| 6 x 8 |
5.4 |
7.4 |
71.2 |
5.9 |
| 6 x 12 |
5.4 |
11.3 |
107.9 |
9 |
| 8 x 8 |
7.3 |
7.3 |
77.3 |
6.4 |
| 8 x 10 |
7.3 |
9.3 |
98 |
8.2 |
| 10 x 10 |
9.8 |
9.8 |
112.7 |
9.4 |
|
|
| 200 Lbs/Sq Foot Live Load |
| 24 Inch Center Distance for Joist |
| 120 Degrees F - Limited by Deflection |
|
|
|
|
|
|
Actual Size |
Maximum Span |
| Size |
Width |
Height |
Inches |
Ft |
| 5/4 x 4 |
1.1 |
3.5 |
18.3 |
1.5 |
| 5/4 x 6 |
1.1 |
5.5 |
28.8 |
2.4 |
| 5/4 x 8 |
1.1 |
7.3 |
38.2 |
3.2 |
| 2 x 4 |
1.5 |
3.5 |
20.3 |
1.7 |
| 2 x 6 |
1.5 |
5.4 |
31.3 |
2.6 |
| 2 x 8 |
1.5 |
7.3 |
42.3 |
3.5 |
| 2 x 10 |
1.5 |
9.25 |
53.6 |
4.5 |
| 2 x 12 |
1.5 |
11.3 |
65.4 |
5.5 |
| 3 x 4 |
2.4 |
3.4 |
23.1 |
1.9 |
| 3 x 6 |
2.4 |
5.5 |
37.3 |
3.1 |
| 3 x 8 |
2.4 |
7.4 |
50.1 |
4.2 |
| 3 x 10 |
2.4 |
9.3 |
62.9 |
5.2 |
| 3 x 12 |
2.4 |
11.3 |
76.3 |
6.4 |
| 4 x 4 |
3.4 |
3.4 |
25.9 |
2.2 |
| 4 x 6 |
3.4 |
5.4 |
41 |
3.4 |
| 4 x 8 |
3.4 |
7.3 |
55.4 |
4.6 |
| 4 x 12 |
3.4 |
11.3 |
85.4 |
7.1 |
| 5 x 5 |
4.4 |
4.4 |
36.4 |
3 |
| 6 x 6 |
5.4 |
5.4 |
47.7 |
4 |
| 6 x 8 |
5.4 |
7.4 |
65.2 |
5.4 |
| 6 x 12 |
5.4 |
11.3 |
99 |
8.2 |
| 8 x 8 |
7.3 |
7.3 |
70.8 |
5.9 |
| 8 x 10 |
7.3 |
9.3 |
89.9 |
7.5 |
| 10 x 10 |
9.8 |
9.8 |
103.7 |
8.6 |
|
bm
|