Perfection Structural Components

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Floor Truss Max-Spans

40/10/0/5 = 55 PSF @ 0%

        40/10/0/10 = 60 PSF @ 0%      
Depth (inches) 24" o.c. 19.2" o.c. 16" o.c. 12" o.c.   Depth (inches) 24" o.c. 19.2" o.c. 16" o.c. 12" o.c.
12 17-11 20-03 20-06 20-06   12 16-04 18-08 20-06 20-06
13 18-09 21-02 22-02 22-02   13 17-02 19-06 21-08 22-02
14 19-17 22-01 23-11 23-11   14 17-11 20-04 22-07 23-11
15 20-04 22-11 25-03 25-07   15 18-07 21-02 23-06 25-07
16 21-01 23-09 26-02 27-04   16 19-03 21-11 24-04 27-03
17 21-09 24-07 27-01 29-00   17 19-11 22-08 25-02 29-00
18 22-06 25-04 27-11 30-09   18 20-06 23-05 25-11 30-05
20 23-10 26-10 29-07 34-02   20 21-09 24-09 27-06 32-03
22 25-01 28-03 31-02 36-03   22 22-11 26-01 28-11 33-11
24 26-03 29-07 32-07 37-11   24 24-00 27-04 30-04 35-06
                   
50/10/0/10 = 70 PSF @ 0%         40/25/0/10 = 75 PSF @ 0%      
Depth (inches) 24" o.c. 19.2" o.c. 16" o.c. 12" o.c.   Depth (inches) 24" o.c. 19.2" o.c. 16" o.c. 12" o.c.
12 15-02 17-03 19-02 20-06   12 14-08 16-08 18-06 20-06
13 15-10 18-01 22-00 22-02   13 15-04 17-06 19-04 22-02
14 16-06 18-10 20-11 23-11   14 16-00 18-02 20-02 23-08
15 17-02 19-07 21-09 25-06   15 16-07 18-11 21-00 24-07
16 17-10 20-04 22-06 26-05   16 17-02 19-07 21-09 25-06
17 18-05 21-00 23-03 27-04   17 17-09 20-03 22-06 26-04
18 19-00 21-08 24-00 28-02   18 18-04 20-11 23-03 27-03
20 20-02 24-02 26-09 31-05   20 19-05 22-02 24-07 28-10
22 21-02 24-02 26-09 31-05   22 20-06 23-04 25-11 30-04
24 22-02 25-04 28-01 32-11   24 21-05 24-05 27-01 31-09
                   
50/20/0/10 = 85 PSF 0%         50/35/0/10 = 95 @ 0%      
Depth (inches) 24" o.c. 19.2" o.c. 16" o.c. 12" o.c.   Depth (inches) 24" o.c. 19.2" o.c. 16" o.c. 12" o.c.
12 13-09 15-08 17-05 20-05   12 13-00 14-10 16-05 19-03
13 14-05 16-05 18-02 21-04   13 13-07 15-06 17-02 20-02
14 15-00 17-01 19-00 22-03   14 14-02 16-02 17-11 21-00
15 15-07 17-09 19-09 23-02   15 14-09 16-10 18-08 21-11
16 16-02 18-05 20-05 23-11   16 15-03 17-05 19-04 22-08
17 16-08 19-00 21-02 24-09   17 15-10 18-00 20-00 23-05
18 17-03 19-08 21-10 25-07   18 16-04 18-07 20-07 24-02
20 18-03 20-10 23-01 27-01   20 17-03 19-08 21-10 25-07
22 19-03 21-11 24-04 28-06   22 18-02 20-09 23-00 26-11
24 20-02 22-11 25-06 29-10   24 19-00 21-09 24-01 28-03

Note: Above max-spans are valid for lumber design only.  Plating or other considerations may further limit the truss design