| 8-Diamond plank 18-3/4"
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) |
6.1
(9.1) |
81514 |
U |
337 |
217 |
151 |
112 |
86 |
69 |
56 |
47 |
|
|
|
|
|
|
|
|
|
| D |
.33 |
.27 |
.26 |
.29 |
.33 |
.38 |
.45 |
.55 |
|
|
|
|
|
|
|
|
|
| C |
263 |
211 |
178 |
153 |
135 |
121 |
110 |
101 |
|
|
|
|
|
|
|
|
|
| D |
.16 |
.15 |
.15 |
.16 |
.17 |
.19 |
.22 |
.25 |
|
|
|
|
|
|
|
|
|
2
(50.8) |
6.3
(9.4) |
82014 |
U |
540 |
358 |
250 |
184 |
142 |
113 |
92 |
76 |
65 |
55 |
48 |
42 |
|
|
|
|
|
| D |
.48 |
.37 |
.34 |
.32 |
.34 |
.38 |
.43 |
.50 |
.58 |
.66 |
.77 |
.87 |
|
|
|
|
|
| C |
437 |
349 |
282 |
251 |
220 |
198 |
179 |
164 |
152 |
141 |
132 |
124 |
|
|
|
|
|
| D |
.24 |
.21 |
.20 |
.19 |
.20 |
.21 |
.23 |
.26 |
.29 |
.32 |
.36 |
.40 |
|
|
|
|
|
2-1/2
(63.5) |
6.6
(9.8) |
82514 |
U |
540 |
411 |
286 |
211 |
162 |
129 |
105 |
87 |
74 |
63 |
55 |
48 |
43 |
|
|
|
|
| D |
.46 |
.39 |
.35 |
.28 |
.27 |
.28 |
.31 |
.35 |
.39 |
.44 |
.50 |
.57 |
.64 |
|
|
|
|
| C |
450 |
402 |
335 |
287 |
252 |
225 |
205 |
188 |
173 |
161 |
151 |
142 |
134 |
|
|
|
|
| D |
.24 |
.22 |
.20 |
.19 |
.19 |
.19 |
.20 |
.21 |
.23 |
.24 |
.27 |
.29 |
.32 |
|
|
|
|
STEEL
12 ga. |
1-1/2
(38.1) |
8.5
(12.6) |
81512 |
U |
446 |
287 |
201 |
148 |
115 |
91 |
75 |
63 |
53 |
46 |
40 |
|
|
|
|
|
|
| D |
.27 |
.22 |
.22 |
.26 |
.32 |
.39 |
.47 |
.56 |
.67 |
.80 |
.92 |
|
|
|
|
|
|
| C |
359 |
280 |
235 |
203 |
179 |
161 |
146 |
135 |
125 |
117 |
110 |
|
|
|
|
|
|
| D |
.12 |
.12 |
.12 |
.14 |
.16 |
.19 |
.22 |
.26 |
.30 |
.35 |
.40 |
|
|
|
|
|
|
2
(50.8) |
8.9
(13.2) |
82012 |
U |
710 |
456 |
318 |
235 |
181 |
144 |
117 |
98 |
83 |
81 |
62 |
54 |
48 |
|
|
|
|
| D |
.31 |
.25 |
.23 |
.25 |
.28 |
.31 |
.37 |
.44 |
.51 |
.60 |
.68 |
.79 |
.90 |
|
|
|
|
| C |
554 |
444 |
371 |
319 |
282 |
253 |
229 |
210 |
194 |
181 |
169 |
160 |
151 |
|
|
|
|
| D |
.17 |
.15 |
.14 |
.15 |
.16 |
.17 |
.19 |
.22 |
.25 |
.28 |
.32 |
.36. |
.40 |
|
|
|
|
2-1/2
(63.5) |
9.2
(13.7) |
82512 |
U |
810 |
680 |
473 |
348 |
267 |
212 |
172 |
143 |
120 |
103 |
89 |
78 |
69 |
55 |
45 |
|
|
| D |
.33 |
.31 |
.27 |
.26 |
.27 |
.29 |
.32 |
.37 |
.42 |
.49 |
.55 |
.63 |
.72 |
.90 |
1.12 |
|
|
| C |
800 |
663 |
553 |
475 |
416 |
371 |
334 |
307 |
282 |
262 |
244 |
229 |
216 |
194 |
177 |
|
|
| D |
.23 |
.20 |
.18 |
.18 |
.18 |
.18 |
.19 |
.21 |
.23 |
.25 |
.28 |
.31 |
.34 |
.51. |
50 |
|
|
3
(76.2) |
9.6
(14.3) |
83012 |
U |
810 |
810 |
598 |
440 |
337 |
267 |
217 |
180 |
152 |
130 |
112 |
98 |
87 |
69 |
57 |
47 |
40 |
| D |
.32 |
.35 |
.30 |
.27 |
.26 |
.28 |
.31 |
.34 |
.39 |
.43 |
.49 |
.56 |
.62 |
.78 |
.96 |
1.17 |
1.40 |
| C |
800 |
800 |
699 |
600 |
526 |
468 |
422 |
385 |
353 |
327 |
307 |
288 |
271 |
243 |
221 |
203 |
189 |
| D |
.22 |
.23 |
.22 |
.20 |
.20 |
.20 |
.20 |
.21 |
.22 |
.24 |
.26 |
.28 |
.31 |
.37 |
.44 |
.52 |
.61 |
ALUM>
ALLOY
5052
12 ga.
.080" |
1-1/2*
(38.1) |
2.11
(3.13) |
81512-A |
U |
253 |
162 |
112 |
83 |
|
|
|
|
|
|
|
|
|
|
|
|
|
| D |
.49 |
.40 |
.39 |
.44 |
|
|
|
|
|
|
|
|
|
|
|
|
|
| C |
198 |
158 |
132 |
113 |
|
|
|
|
|
|
|
|
|
|
|
|
|
| D |
.24 |
.22 |
.22 |
.24 |
|
|
|
|
|
|
|
|
|
|
|
|
|
2
(50.8) |
2.20
(3.27) |
82012-A |
U |
308 |
237 |
165 |
121 |
93 |
73 |
59 |
49 |
|
|
|
|
|
|
|
|
|
| D |
.54 |
.50 |
.44 |
.44 |
.47 |
.53 |
.61 |
.71 |
|
|
|
|
|
|
|
|
|
| C |
590 |
232 |
193 |
166 |
145 |
129 |
116 |
106 |
|
|
|
|
|
|
|
|
|
| D |
.32 |
.28 |
.27 |
.27 |
.28 |
.30 |
.32 |
.36 |
|
|
|
|
|
|
|
|
|
2-1/2*
(63.5) |
2.29
(3.40) |
82512-A |
U |
308 |
308 |
248 |
182 |
139 |
110 |
89 |
74 |
62 |
53 |
|
|
|
|
|
|
|
| D |
.51 |
.57 |
.54 |
.49 |
.50 |
.52 |
.57 |
.65 |
.73 |
.83 |
|
|
|
|
|
|
|
| C |
350 |
348 |
290 |
249 |
218 |
194 |
174 |
158 |
145 |
134 |
|
|
|
|
|
|
|
| D |
.37 |
.39 |
.35 |
.33 |
.33 |
.34 |
.35 |
.37 |
.40 |
.43 |
|
|
|
|
|
|
|
3*
(76.2) |
2.39
(3.55) |
83012-A |
U |
308 |
308 |
308 |
223 |
171 |
135 |
109 |
90 |
76 |
65 |
56 |
49 |
|
|
|
|
|
| D |
.50 |
.54 |
.62 |
.54 |
.52 |
.52 |
.56 |
.61 |
.68 |
.76 |
.86 |
.96 |
|
|
|
|
|
| C |
350 |
350 |
350 |
306 |
268 |
238 |
214 |
195 |
178 |
165 |
153 |
143 |
|
|
|
|
|
| D |
.37 |
.38 |
.41 |
.38 |
.37 |
.37 |
.37 |
.39 |
.40 |
.43 |
.46 |
.50 |
|
|
|
|
|
ALUM.
ALLOY
5052
10 ga.
.100" |
1-1/2*
(38.1) |
2.68
(3.98) |
81510-A |
U |
288 |
184 |
128 |
94 |
72 |
57 |
|
|
|
|
|
|
|
|
|
|
|
| D |
.41 |
.36 |
.36 |
.40 |
.47 |
.56 |
|
|
|
|
|
|
|
|
|
|
|
| C |
225 |
180 |
150 |
129 |
113 |
100 |
|
|
|
|
|
|
|
|
|
|
|
| D |
.18 |
.18 |
.19 |
.21 |
.23 |
2.7 |
|
|
|
|
|
|
|
|
|
|
|
2
(50.8) |
2.79
(4.15) |
82010-A |
U |
457 |
332 |
231 |
170 |
130 |
103 |
83 |
69 |
58 |
49 |
|
|
|
|
|
|
|
| D |
.59 |
.51 |
.46 |
.47 |
.52 |
.57 |
.67 |
.78 |
.89 |
1.03 |
|
|
|
|
|
|
|
| C |
406 |
325 |
271 |
232 |
203 |
181 |
163 |
148 |
135 |
125 |
|
|
|
|
|
|
|
| D |
.29 |
.26 |
.25 |
.26 |
.28 |
.30 |
.33 |
.37 |
.42 |
.47 |
|
|
|
|
|
|
|
2-1/2*
(63.5) |
2.91
(4.33) |
82510-A |
U |
457 |
457 |
317 |
233 |
179 |
141 |
114 |
94 |
79 |
68 |
58 |
51 |
45 |
|
|
|
|
| D |
.55 |
.62 |
.51 |
.48 |
.48 |
.52 |
.58 |
.64 |
.73 |
.84 |
.94 |
1.07 |
1.20 |
|
|
|
|
| C |
550 |
447 |
372 |
319 |
279 |
248 |
223 |
203 |
186 |
172 |
160 |
149 |
140 |
|
|
|
|
| D |
.37 |
.32 |
.30 |
.29 |
.29 |
.30 |
.32 |
.35 |
.38 |
.41 |
.46 |
.52 |
.55 |
|
|
|
|
3*
(76.2) |
3.02
(4.50) |
83010-A |
U |
457 |
457 |
410 |
301 |
231 |
182 |
148 |
122 |
102 |
87 |
75 |
66 |
58 |
|
|
|
|
| D |
.53 |
.57 |
.58 |
.51 |
.48 |
.48 |
.51 |
.56 |
.61 |
.69 |
.76 |
.85 |
.95 |
|
|
|
|
| C |
550 |
550 |
481 |
412 |
360 |
320 |
288 |
262 |
240 |
222 |
206 |
192 |
180 |
|
|
|
|
| D |
.37 |
.39 |
.37 |
.35 |
.34 |
.34 |
.36 |
.38 |
.41 |
.44 |
.48 |
.52 |
.57 |
|
|
|
|
*Available on special order. |