Structural Span - 16" on Center
Chart for ambient 120°F |
 |
|
| JOIST MODE |
|
JOIST MODE |
| 60 Lb/Sq Foot Live Load |
| 16 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 |
30.4 |
2.5 |
| 5/4 x 6 |
1.1 |
5.4 |
46.8 |
3.9 |
| 5/4 x 8 |
1.1 |
7.3 |
63.1 |
5.3 |
| 2 x 4 |
1.5 |
3.5 |
33.7 |
2.8 |
| 2 x 6 |
1.5 |
5.4 |
51.8 |
4.3 |
| 2 x 8 |
1.5 |
7.3 |
69.7 |
5.8 |
| 2 x 10 |
1.5 |
9.25 |
88 |
7.3 |
| 2 x 12 |
1.5 |
11.3 |
108.7 |
9.1 |
| 3 x 4 |
2.4 |
3.4 |
38.1 |
3.2 |
| 3 x 6 |
2.4 |
5.5 |
61.2 |
5.1 |
| 3 x 8 |
2.4 |
7.4 |
81.9 |
6.8 |
| 3 x 10 |
2.4 |
9.3 |
102.3 |
8.5 |
| 3 x 12 |
2.4 |
11.3 |
123.6 |
10.3 |
| 4 x 4 |
3.4 |
3.4 |
42.6 |
3.6 |
| 4 x 6 |
3.4 |
5.4 |
67.1 |
5.6 |
| 4 x 8 |
3.4 |
7.5 |
92.3 |
7.7 |
| 4 x 12 |
3.4 |
11.25 |
136.3 |
11.4 |
| 5 x 5 |
4.4 |
4.4 |
59.5 |
5 |
| 6 x 6 |
5.4 |
5.4 |
77.2 |
6.4 |
| 6 x 8 |
5.4 |
7.4 |
104.4 |
8.7 |
| 6 x 12 |
5.4 |
11.3 |
155.6 |
13 |
| 8 x 8 |
7.3 |
7.3 |
112.1 |
9.3 |
| 8 x 10 |
7.3 |
9.3 |
140.5 |
11.7 |
| 10 x 10 |
9.8 |
9.8 |
158.7 |
13.2 |
|
 |
| 100 Lb/Sq Foot Live Load |
| 16 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 |
26.1 |
2.2 |
| 5/4 x 6 |
1.1 |
5.4 |
40.2 |
3.3 |
| 5/4 x 8 |
1.1 |
7.3 |
54.2 |
4.5 |
| 2 x 4 |
1.5 |
3.5 |
28.9 |
2.4 |
| 2 x 6 |
1.5 |
5.4 |
44.5 |
3.7 |
| 2 x 8 |
1.5 |
7.3 |
60 |
5 |
| 2 x 10 |
1.5 |
9.25 |
75.8 |
6.3 |
| 2 x 12 |
1.5 |
11.3 |
92.4 |
7.7 |
| 3 x 4 |
2.4 |
3.4 |
32.8 |
2.7 |
| 3 x 6 |
2.4 |
5.5 |
52.8 |
4.4 |
| 3 x 8 |
2.4 |
7.4 |
70.7 |
5.9 |
| 3 x 10 |
2.4 |
9.3 |
88.5 |
7.4 |
| 3 x 12 |
2.4 |
11.3 |
107.2 |
8.9 |
| 4 x 4 |
3.4 |
3.4 |
36.7 |
3.1 |
| 4 x 6 |
3.4 |
5.4 |
57.9 |
4.8 |
| 4 x 8 |
3.4 |
7.5 |
80 |
6.7 |
| 4 x 12 |
3.4 |
11.25 |
118.7 |
9.9 |
| 5 x 5 |
4.4 |
4.4 |
51.4 |
4.3 |
| 6 x 6 |
5.4 |
5.4 |
67 |
5.6 |
| 6 x 8 |
5.4 |
7.4 |
91 |
7.6 |
| 6 x 12 |
5.4 |
11.3 |
136.7 |
11.4 |
| 8 x 8 |
7.3 |
7.3 |
98.2 |
8.2 |
| 8 x 10 |
7.3 |
9.3 |
123.8 |
10.3 |
| 10 x 10 |
9.8 |
9.8 |
141 |
11.8 |
|
| |
|
|
| 150 LB/Sq Foot Live Load |
| 16 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 |
23 |
1.9 |
| 5/4 x 6 |
1.1 |
5.4 |
35.4 |
3 |
| 5/4 x 8 |
1.1 |
7.3 |
47.8 |
4 |
| 2 x 4 |
1.5 |
3.5 |
25.5 |
2.1 |
| 2 x 6 |
1.5 |
5.4 |
39.2 |
3.3 |
| 2 x 8 |
1.5 |
7.3 |
53 |
4.4 |
| 2 x 10 |
1.5 |
9.25 |
67 |
5.6 |
| 2 x 12 |
1.5 |
11.3 |
81.7 |
6.8 |
| 3 x 4 |
2.4 |
3.4 |
28.9 |
2.4 |
| 3 x 6 |
2.4 |
5.5 |
46.6 |
3.9 |
| 3 x 8 |
2.4 |
7.4 |
62.5 |
5.2 |
| 3 x 10 |
2.4 |
9.3 |
78.4 |
6.5 |
| 3 x 12 |
2.4 |
11.3 |
95 |
7.9 |
| 4 x 4 |
3.4 |
3.4 |
32.4 |
2.7 |
| 4 x 6 |
3.4 |
5.4 |
51.2 |
4.3 |
| 4 x 8 |
3.4 |
7.5 |
70.9 |
5.9 |
| 4 x 12 |
3.4 |
11.25 |
105.5 |
8.8 |
| 5 x 5 |
4.4 |
4.4 |
45.5 |
3.8 |
| 6 x 6 |
5.4 |
5.4 |
59.4 |
5 |
| 6 x 8 |
5.4 |
7.4 |
80.9 |
6.7 |
| 6 x 12 |
5.4 |
11.3 |
122.2 |
10.2 |
| 8 x 8 |
7.3 |
7.3 |
87.6 |
7.3 |
| 8 x 10 |
7.3 |
9.3 |
110.8 |
9.2 |
| 10 x 10 |
9.8 |
9.8 |
126.9 |
10.6 |
|
|
| 200 Lbs/Sq Foot Live Load |
| 16 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 |
21 |
1.7 |
| 5/4 x 6 |
1.1 |
5.4 |
32.3 |
2.7 |
| 5/4 x 8 |
1.1 |
7.3 |
43.7 |
3.6 |
| 2 x 4 |
1.5 |
3.5 |
23.3 |
1.9 |
| 2 x 6 |
1.5 |
5.4 |
35.8 |
3 |
| 2 x 8 |
1.5 |
7.3 |
48.4 |
4 |
| 2 x 10 |
1.5 |
9.25 |
61.2 |
5.1 |
| 2 x 12 |
1.5 |
11.3 |
74.7 |
6.2 |
| 3 x 4 |
2.4 |
3.4 |
26.4 |
2.2 |
| 3 x 6 |
2.4 |
5.5 |
42.6 |
3.5 |
| 3 x 8 |
2.4 |
7.4 |
57.2 |
4.8 |
| 3 x 10 |
2.4 |
9.3 |
71.7 |
6 |
| 3 x 12 |
2.4 |
11.3 |
87 |
7.2 |
| 4 x 4 |
3.4 |
3.4 |
29.6 |
2.5 |
| 4 x 6 |
3.4 |
5.4 |
46.9 |
3.9 |
| 4 x 8 |
3.4 |
7.3 |
63.2 |
5.3 |
| 4 x 12 |
3.4 |
11.25 |
96.8 |
8.1 |
| 5 x 5 |
4.4 |
4.4 |
41.6 |
3.5 |
| 6 x 6 |
5.4 |
5.4 |
54.4 |
4.5 |
| 6 x 8 |
5.4 |
7.4 |
74.2 |
6.2 |
| 6 x 12 |
5.4 |
11.3 |
112.3 |
9.4 |
| 8 x 8 |
7.3 |
7.3 |
80.5 |
6.7 |
| 8 x 10 |
7.3 |
9.3 |
101.9 |
8.5 |
| 10 x 10 |
9.8 |
9.8 |
117.1 |
9.8 |
|
bm
|