Building Inspection Division Hand Outs
Span Tables




Figure A (click for larger image) Figure B (click for larger image)




**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