Design Values
Fb tension 3,000 psi
Fb compression 3,000 psi
Fv horizontal shear 300 psi
MOE 2.1 X 106 psi

Design Properties
Width (in.) Depth (in.) Weight
(lbf./ft.)
Maximum Resistive Shear (lbf)
100% 115% 125%
Maximum Resistive Moment (ft.-lbf)
100% 115% 125%
El
(106 in.2-lb.)
3½ 9½ 8.3
6,650 7,648 8,313
13,161 15,136 16,452
525
11 7/8 10.4
8,313 9,559 10,391
20,565 23,649 25,706
1,026
14 12.3
9,800 11,200 12,250
28,583 32,871 35,729
1,681
16 14.0
11,200 12,880 14,000
37,333 42,933 59,063
2,509
18 15.8
12,600 14,490 15,750
47,250 54,338 59,063
3,572
Width (in.) Depth (in.) Weight
(lbf./ft.)
Maximum Resistive Shear (lbf)
100% 115% 125%
Maximum Resistive Moment (ft.-lbf)
100% 115% 125%
El
(106 in.2-lb.)
5 7/16 9½ 12.9
10,331 11,881 12,914
20,447 23,514 25,559
816
11 7/8 16.1
12,914 14,851 16,143
31,949 36,741 39,936
1,593
14 19.0
15,225 17,509 19,031
44,406 51,067 55,508
2,611
16 21.8
17,400 20,010 21,750
58,000 66,700 72,500
3,898
18 24.5
19,575 22,511 24,469
75,406 84,417 91,758
5,550
Width (in.) Depth (in.) Weight
(lbf./ft.)
Maximum Resistive Shear (lbf)
100% 115% 125%
Maximum Resistive Moment (ft.-lbf)
100% 115% 125%
El
(106 in.2-lb.)
7 9½ 16.6
13,300 15,295 16,625
26,323 30,271 37,904
1,050
11 7/8 20.8
16,625 19,119 20,781
41,130 47,299 51,412
2,051
14 24.5
19,600 22,540 24,500
57,167 65,742 71,458
3,361
16 28.0
22,400 25,760 28,000
74,667 85,867 92,333
5,018
18 31.5
25,200 28,980 31,500
94,500 108,675 118,125
7,144
Notes for BigBeam Design Properties:
(1) Beam weight is assumed to be 36 pcf.
(2) Maximum resistive moment shall be adjusted by the volume factor based on NDS-05





BigBeam.pdf - A 4-page acrobat document for standard BigBeam with tables for allowable floor loads (1.00), allowable roof loads (1.15 and 1.25), minimum bearing length, plus design values and design properties.

DeepBigBeam.pdf - A 4-page acrobat document for Deep BigBeam (depths 20" through 30") with tables for allowable floor loads (1.00), allowable roof loads (1.15 and 1.25), minimum bearing length, plus design values and design properties.