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Where speed meets strength. |
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Span Charts| 9-1/4" Depth Maximum Live Load Deflection (L/360 & L/480, 1-1/2" Minimum Bearing Each End) | |||||||||||
Chord* Size |
Chord* Grade |
Loading (PSF) |
12" o.c. |
16" o.c. |
19.2" o.c. |
24" o.c. |
|||||
Live |
Dead |
L/360 |
L/480 |
L/360 |
L/480 |
L/360 |
L/480 |
L/360 |
L/480 |
||
3x2 |
#2 |
40 |
15 |
15'-9" |
15'-9" |
15'-9" |
14'-11" |
15'-6" |
14'-0" |
14'-3" |
12'-10" |
4x2 |
MSR 2100 |
40 |
15 |
19'-9" |
19'-5" |
19'-1" |
17'-3" |
17'11" |
16'-6" |
16'-11" |
|
3x2 |
#2 |
50 |
15 |
15'-9" |
15'-3" |
15'-3" |
13'-9" |
14'-3" |
12'-10" |
13'-2" |
11'-11" |
4x2 |
MSR 2100 |
50 |
15 |
19'-9" |
17'-11" |
17'-11" |
16'-4" |
16'-11" |
|||
3x2 |
#2 |
100 |
15 |
13'-2" |
11'-11" |
11'-11" |
10'-8" |
11'-1" |
9'-11" |
9'-3" |
8'-9" |
| 11-7/8" Depth Maximum Live Load Deflection - (L/360 & L/480, 1-1/2" Minimum Bearing Each End) | |||||||||||
Chord* Size |
Chord* Grade |
Loading (PSF) |
12" o.c. |
16" o.c. |
19.2" o.c. |
24" o.c. |
|||||
Live |
Dead |
L/360 |
L/480 |
L/360 |
L/480 |
L/360 |
L/480 |
L/360 |
L/480 |
||
3x2 |
#2 |
40 |
15 |
16'-9" |
16'-9" |
16'-9" |
16'-9" |
16'-9" |
16'-8" |
16'-9" |
15'-2" |
4x2 |
#2 |
40 |
15 |
18'-9" |
18'-9" |
18'-9" |
18'-9" |
18'-9" |
18'-7" |
17'-2" |
17'-2" |
4x2 |
MSR 2100 |
40 |
15 |
22'-9" |
22'-9" |
22'-9" |
21'-0" |
21'-5" |
19'-10" |
19'-3" |
|
3x2 |
#2 |
50 |
15 |
16'-9" |
16'-9" |
16'-9" |
16'-5" |
16'-9" |
15'-2" |
14'-1" |
14'-1" |
4x2 |
#2 |
50 |
15 |
18'-9" |
18'-9" |
18'-9" |
18'-5" |
17'-8" |
17'-3" |
15'-4" |
14'-1" |
4x2 |
MSR 2100 |
50 |
15 |
22'-9" |
21'-5" |
21'-5" |
19'-8" |
20'-3" |
16'-3" |
||
3x2 |
#2 |
100 |
15 |
15'-7" |
14'-1" |
13'-11" |
12'-9" |
12'-3" |
11'-11" |
10'-4" |
10'-4" |
4x2 |
#2 |
100 |
15 |
16'-11" |
|||||||
Top of Page
14" Truss Depth*
| 14" Depth Maximum Live Load Deflection - (L/360 & L/480, 1-1/2" Minimum Bearing Each End) | |||||||||||
Chord* Size |
Chord* Grade |
Loading (PSF) |
12" o.c. |
16" o.c. |
19.2" o.c. |
24" o.c. |
|||||
Live |
Dead |
L/360 |
L/480 |
L/360 |
L/480 |
L/360 |
L/480 |
L/360 |
L/480 |
||
3x2 |
#2 |
40 |
15 |
17'-9" |
17'-9" |
17'-9" |
17'-9" |
17'-9" |
17'-9" |
17'-9" |
16'-4" |
4x2 |
#2 |
40 |
15 |
20'-9" |
20'-9" |
20'-9" |
20'-9" |
20'-9" |
19'-10" |
18'-9" |
18'-5" |
4x2 |
MSR 2100 |
40 |
15 |
24'-9" |
24'-9" |
24'-8" |
22'-9" |
23'-5" |
21'-2" |
20'-10" |
|
3x2 |
#2 |
50 |
15 |
17'-9" |
17'-9" |
17'-9" |
17'-7" |
17'-9" |
16'-5" |
16'-4" |
15'-3" |
4x2 |
#2 |
50 |
15 |
20'-9" |
20'-9" |
20'-9" |
19'-8" |
19'-9" |
18'-6" |
||
4x2 |
MSR 2100 |
50 |
15 |
24'-9" |
23'-2" |
23'-2" |
21'-0" |
21'-10" |
|||
3x2 |
#2 |
100 |
15 |
16'-9" |
15'-2" |
14'-4" |
13'-8" |
12'-10" |
12'-8" |
10'-9" |
10'-9" |
4x2 |
#2 |
100 |
15 |
18'-4" |
|||||||
16" Truss Depth*
| 16" Depth Maximum Live Load Deflection - (L/360 & L/480, 1-1/2" Minimum Bearing Each End) | |||||||||||
Chord* Size |
Chord* Grade |
Loading (PSF) |
12" o.c. |
16" o.c. |
19.2"o.c. |
24" o.c. |
|||||
Live |
Dead |
L/360 |
L/480 |
L/360 |
L/480 |
L/360 |
L/480 |
L/360 |
L/480 |
||
3x2 |
#2 |
40 |
15 |
16'-9" |
16'-9" |
16'-9" |
16'-9" |
16'-9" |
16'-9" |
16'-9" |
16'-9" |
4x2 |
#2 |
40 |
15 |
21'-9" |
21'-9" |
21'-9" |
21'-9" |
21'-9" |
21'-9" |
21'-9" |
21'-9" |
4x2 |
MSR 2100 |
40 |
15 |
25'-9" |
25'-9" |
25'-9" |
25'-9" |
25'-9" |
25'-6" |
25'-9" |
22'-5" |
4x2 |
MSR 2400 |
40 |
15 |
29'-9" |
29'-8" |
29'-9" |
27'-7" |
28'-5" |
26'-10" |
||
3x2 |
#2 |
50 |
15 |
16'-9" |
16'-9" |
16'-9" |
16'-9" |
16'-9" |
16'-9" |
16'-9" |
16'-9" |
4x2 |
#2 |
50 |
15 |
21'-9" |
21'-9" |
21'-9" |
21'-9" |
21'-9" |
21'-9" |
21'-9" |
20'-10" |
4x2 |
MSR 2100 |
50 |
15 |
25'-9" |
25'-9" |
25'-9" |
25'-0" |
25'-9" |
22'-5" |
23'-10" |
|
4x2 |
MSR 2400 |
50 |
15 |
29'-9" |
28'-2" |
28'-3" |
26'-10" |
||||
3x2 |
#2 |
100 |
15 |
16'-9" |
16'-9" |
16'-8" |
16'-8" |
13'-6" |
13'-6" |
11'-4" |
11'-4" |
4x2 |
#2 |
100 |
15 |
21'-9" |
20'-10" |
19'-1" |
19'-0" |
16'-9" |
15'-9" |
||
4x2 |
MSR 2100 |
100 |
15 |
23'-3" |
|||||||
- View details on fire resistance assemblies for one and two hour endurance.
- Because Open Joist™ is a "stock" product, the length of an Open Joist truss determines the size and grade of the truss chords (see tables). Maximum spans published on the chart above may be limited by standard joist configuration. To find maximum clear span for each truss depth in a given loading condition, refer to the bottom line of spans shown for that load condition.
- NOTE: Clear spans shown on this chart are presented under the following conditions: (1) Bearing of 1-1/2"; (2) "Strongback" bracing is not considered; (3) Assumes a single layer of APA-rated wood sheathing is nailed or screwed; (4) Spans are clear distance between supports for uniformly loaded trusses and include allowable increases for repetitive use members.
- Special Engineering Note: Open Joist trusses may be manufactured with components that provide increased structural values that may exceed the performance levels indicated in these charts.
Universal Forest Products Eastern Division, Inc. manufactures the Open Joist™ product as a licensee of Distribution Open Joist 2000, Inc. All Open Joist product design and engineering calculations are created by the licensor, Distribution Open Joist 2000, Inc.