| 3-diamond plank 7" width
PRODUCT SELECTION/DESIGN TABLES
Allowable Loads and Deflections: Uuniform load (lb. /
ft.2) Cconcentrated load (lb.) Ddeflection (in.)
Spans to the left of heavy line produce a deflection of 1/4" or less under a uniform
load of 100 lb. / ft.2
Material/
Gauge |
Channel
Depth
in.(mm) |
Weight
lb./lin.
ft.
(kg/m) |
Catalog
Number |
Span |
|
2' |
2'-6" |
3' |
3'-6" |
4' |
4'-6" |
5' |
5'-6" |
6' |
6'-6" |
7' |
7'-6" |
8' |
9' |
10' |
11' |
12' |
STEEL
14 ga. |
1-1/2
(38.1) |
3.0
(4.46) |
31514 |
U |
899 |
577 |
402 |
269 |
227 |
180 |
147 |
122 |
103 |
|
|
|
|
|
|
|
|
| D |
.06 |
.10 |
.14 |
.20 |
.26 |
.33 |
.40 |
.49 |
.59 |
|
|
|
|
|
|
|
|
| C |
524 |
421 |
351 |
302 |
265 |
237 |
214 |
196 |
180 |
|
|
|
|
|
|
|
|
| D |
.05 |
.08 |
.11 |
.16 |
.21 |
.26 |
.32 |
.39 |
.47 |
|
|
|
|
|
|
|
|
2
(50.8) |
3.2
(4.76) |
32014 |
U |
1492 |
957 |
665 |
490 |
376 |
298 |
242 |
201 |
169 |
145 |
125 |
110 |
97 |
77 |
63 |
|
|
| D |
.06 |
.09 |
.13 |
.17 |
.23 |
.29 |
.35 |
.43. |
51 |
.61 |
.71 |
.81 |
.93 |
1.19 |
1.49 |
|
|
| C |
871 |
697 |
582 |
500 |
439 |
391 |
353 |
322 |
296 |
275 |
256 |
240 |
226 |
203 |
185 |
|
|
| D |
.04 |
.07 |
.10 |
.14 |
.18 |
.23 |
.28 |
.34 |
.41 |
.48 |
.56 |
.65 |
.74 |
.95 |
1.19 |
|
|
2-1/2
(63.5) |
3.5
(5.21) |
32514 |
U |
1712 |
1097 |
763 |
653 |
431 |
342 |
277 |
230 |
194 |
166 |
144 |
126 |
111 |
89 |
73 |
61 |
52 |
| D |
.04 |
.06 |
.08 |
.11 |
.14 |
.18 |
.23 |
.27 |
.33 |
.39 |
.45 |
.52 |
.59 |
.76 |
.94 |
1.16 |
1.40 |
| C |
999 |
800 |
668 |
574 |
503 |
448 |
405 |
369 |
340 |
315 |
293 |
275 |
259 |
233 |
212 |
195 |
181 |
| D |
.03 |
.04 |
.06 |
.09 |
.11 |
.15 |
.18 |
.22 |
.26 |
.31 |
.36. |
41 |
.47 |
.61 |
.76 |
.93 |
1.12 |
STEEL
12 ga. |
1-1/2
(38.1) |
4.1
(6.10) |
31512 |
U |
1189 |
736 |
532 |
392 |
301 |
239 |
195 |
162 |
137 |
118 |
102 |
90 |
79 |
|
|
|
|
| D |
.07 |
.11 |
.15 |
.21 |
.27 |
.35 |
.43 |
.52 |
.63 |
.74 |
.87 |
1.00 |
1.15 |
|
|
|
|
| C |
694 |
556 |
465 |
400 |
352 |
314 |
284 |
260 |
240 |
223 |
208 |
196 |
185 |
|
|
|
|
| D |
.05 |
.08 |
.12 |
.17 |
.22 |
.28 |
.34 |
.42. |
50 |
.59 |
.69 |
.80 |
.92 |
|
|
|
|
2
(50.8) |
4.5
(6.70) |
32012 |
U |
1896 |
1216 |
846 |
623 |
478 |
379 |
308 |
256 |
216 |
185 |
160 |
140 |
124 |
99 |
82 |
68 |
58 |
| D |
.05 |
.08 |
.11 |
.16 |
.20 |
.26 |
.32 |
.39 |
.47 |
.55 |
.64 |
.74 |
.85 |
1.08 |
1.36 |
1.67 |
2.01 |
| C |
1106 |
886 |
740 |
636 |
558 |
498 |
450 |
410 |
378 |
350 |
327 |
307 |
289 |
260 |
238 |
219 |
203 |
| D |
.04 |
.06 |
.09 |
.12 |
.16 |
.21 |
.26 |
.31 |
.37 |
.44 |
.51 |
.59 |
.68 |
.87 |
1.09 |
1.33 |
1.61 |
2-1/2
(63.5) |
4.9
(7.29) |
33012 |
U |
2836 |
1817 |
1263 |
929 |
712 |
564 |
457 |
379 |
319 |
272 |
235 |
206 |
181 |
144 |
118 |
98 |
83 |
| D |
.04 |
.06 |
.09 |
.13 |
.17 |
.21 |
.26 |
.32 |
.38 |
.44 |
.52. |
59 |
.68 |
.86 |
1.07 |
1.31 |
1.57 |
| C |
1654 |
1325 |
1105 |
948 |
831 |
740 |
667 |
608 |
558 |
516 |
481 |
450 |
423 |
378 |
343 |
314 |
290 |
| D |
.03 |
.05 |
.07 |
.10 |
.13 |
.17 |
.21 |
.25 |
.30 |
.35 |
.41 |
.47 |
.54 |
.69 |
.86 |
1.05 |
1.25 |
3
(76.2) |
5.2
(7.74) |
33012 |
U |
3587 |
2298 |
1597 |
1174 |
900 |
712 |
578 |
478 |
403 |
344 |
297 |
259 |
228 |
181 |
148 |
123 |
104 |
| D |
.04 |
.06 |
.08 |
.11 |
.14 |
.18 |
.22 |
.27 |
.32 |
.38 |
.44 |
.51 |
.58 |
.74 |
.92 |
1.12 |
1.34 |
| C |
1868 |
1675 |
1397 |
1199 |
1050 |
935 |
843 |
767 |
705 |
652 |
606 |
567 |
533 |
476 |
431 |
395 |
364 |
| D |
.03 |
.04 |
.06 |
.09 |
.11 |
.14 |
.18 |
.22 |
.26 |
.30. |
.35 |
.41 |
.46 |
.59 |
.73 |
.89 |
1.07 |
ALUM>
ALLOY
5052
12 ga.
.080" |
1-1/2*
(38.1) |
1.06
(1.58) |
31512-A |
U |
667 |
443 |
301 |
221 |
168 |
133 |
108 |
|
|
|
|
|
|
|
|
|
|
| D |
.10 |
.15 |
.22 |
.31 |
.40 |
.51 |
.63 |
|
|
|
|
|
|
|
|
|
|
| C |
395 |
316 |
263 |
226 |
197 |
175 |
157 |
|
|
|
|
|
|
|
|
|
|
| D |
.08 |
.12 |
.18 |
.25 |
.32 |
.41 |
.50 |
|
|
|
|
|
|
|
|
|
|
2
(50.8) |
1.15
(1.71) |
32012-A |
U |
993 |
636 |
441 |
324 |
248 |
196 |
159 |
131 |
110 |
96 |
80 |
|
|
|
|
|
|
| D |
.08 |
.13 |
.18 |
.25 |
.33 |
.42 |
.52 |
.63 |
.74 |
.86 |
1.00 |
|
|
|
|
|
|
| C |
579 |
463 |
386 |
331 |
290 |
257 |
232 |
211 |
192 |
177 |
165 |
|
|
|
|
|
|
| D |
.06 |
.10 |
.15 |
.20 |
.27 |
.34 |
.42 |
.51 |
.59 |
.69 |
.80 |
|
|
|
|
|
|
2-1/2*
(63.5) |
1.24
(1.85) |
32512-A |
U |
1492 |
955 |
663 |
487 |
373 |
295 |
239 |
197 |
166 |
141 |
122 |
106 |
93 |
|
|
|
|
| D |
.07 |
.10 |
.15 |
.21 |
.28 |
.35 |
.43 |
.53 |
.63 |
.74 |
.85 |
.98 |
1.12 |
|
|
|
|
| C |
812 |
696 |
580 |
497 |
435 |
387 |
348 |
316 |
290 |
268 |
249 |
232 |
218 |
|
|
|
|
| D |
.05 |
.08 |
.12 |
.17 |
.22 |
.28 |
.35 |
.42 |
.50 |
.59 |
.68 |
.78 |
.89 |
|
|
|
|
3*
(76.2) |
1.33
(1.98) |
33012-A |
U |
1833 |
1173 |
815 |
598 |
458 |
362 |
293 |
242 |
204 |
174 |
150 |
130 |
115 |
|
|
|
|
| D |
.06 |
.09 |
.14 |
.19 |
.25 |
.31 |
.39 |
.47 |
.56 |
.66 |
.77 |
.88 |
1.00 |
|
|
|
|
| C |
846 |
846 |
713 |
611 |
535 |
475 |
428 |
389 |
356 |
329 |
305 |
285 |
267 |
|
|
|
|
| D |
.03 |
.07 |
.11 |
.15 |
.20 |
.25 |
.31 |
.38 |
.45 |
.53 |
.61 |
.70 |
.80 |
|
|
|
|
ALUM.
ALLOY
5052
10 ga.
.100" |
1-1/2*
(38.1) |
1.34
(1.99) |
31510-A |
U |
771 |
494 |
343 |
252 |
193 |
152 |
122 |
101 |
|
|
|
|
|
|
|
|
|
| D |
.09 |
.15 |
.22 |
.30 |
.39 |
.50 |
.63 |
.76 |
|
|
|
|
|
|
|
|
|
| C |
450 |
360 |
300 |
257 |
225 |
200 |
179 |
162 |
|
|
|
|
|
|
|
|
|
| D |
.07 |
.12 |
.17 |
.24 |
.31 |
.40 |
.51 |
.61 |
|
|
|
|
|
|
|
|
|
2
(50.8) |
1.46
(2.38) |
32010-A |
U |
1391 |
890 |
618 |
454 |
348 |
275 |
223 |
184 |
155 |
132 |
114 |
99 |
87 |
|
|
|
|
| D |
.09 |
.14 |
.20 |
.28 |
.37 |
.46 |
.58 |
.70 |
.83 |
.98 |
1.13 |
1.30 |
1.48 |
|
|
|
|
| C |
811 |
649 |
541 |
464 |
406 |
361 |
325 |
295 |
270 |
250 |
232 |
216 |
203 |
|
|
|
|
| D |
.07 |
.11 |
.16 |
.22 |
.29 |
.37 |
.46 |
.56 |
.66 |
.78 |
.90 |
1.04 |
1.18 |
|
|
|
|
2-1/2*
(63.5) |
1.57
(2.34) |
32510-A |
U |
1913 |
1225 |
850 |
625 |
478 |
378 |
306 |
253 |
213 |
181 |
156 |
136 |
120 |
|
|
|
|
| D |
.07 |
.11 |
.16 |
.22 |
.28 |
.36 |
.45 |
.54 |
.64 |
.76 |
.88 |
1.01 |
1.15 |
|
|
|
|
| C |
1116 |
893 |
744 |
638 |
558 |
496 |
446 |
406 |
372 |
343 |
319 |
298 |
279 |
|
|
|
|
| D |
.05 |
.09 |
.12 |
.17 |
.23 |
.29 |
.36 |
.43 |
.51 |
.60 |
.70 |
.81 |
.92 |
|
|
|
|
3*
(76.2) |
1.68
(2.50) |
33010-A |
U |
2470 |
1581 |
1098 |
807 |
618 |
488 |
395 |
327 |
274 |
234 |
202 |
176 |
154 |
|
|
|
|
| D |
.05 |
.08 |
.12 |
.17 |
.22 |
.28 |
.34 |
.42 |
.50 |
.59 |
.68 |
.78 |
.89 |
|
|
|
|
| C |
1309 |
1153 |
961 |
823 |
720 |
640 |
576 |
524 |
480 |
443 |
412 |
384 |
360 |
|
|
|
|
| D |
.04 |
.06 |
.10 |
.13 |
.17 |
.22 |
.27 |
.33 |
.40 |
.47 |
.54 |
.62 |
.71 |
|
|
|
|
*Available on special order. |