Building Inspection Division Hand Outs
Span Tables
|
**Hemlock Fir No.2 |
Floor Joist |
Rafters |
Ceiling Joists |
Size
(in.) |
|
Spac.
(in.) |
L/360
LL=40
DL=10 |
L/240
LL=20
DL=10 |
L/240
LL=20
DL=10 |
2x4 |
@ |
12
16
24 |
|
9-2
8-4
7-3 |
9-2
8-4
7-1 |
2x6 |
@ |
12
16
24 |
10-0
9-1
7-11 |
14-5
13-1
11-5 |
14-5
12-8
10-4 |
2x8 |
@ |
12
16
24 |
13-2
12-0
10-2 |
19-0
17-3
14-8 |
18-6
16 -0
13-1 |
2x10 |
@ |
12
16
24 |
16-10
15-2
12-5 |
24-3
21-11
17-10 |
22-7
19-7
16 |
2x12 |
@ |
12
16
24 |
20-4
17-7
14-4 |
|
|
| **Modules of Elasticity 'E' = 1,600,000 |
|
