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MarCo Specialty Steel, Inc
Wire Cloth Perforated Metal Expanded Metal Bar Grating Grip Strut® Perf-O Grip® Hex Metal
Wire Cloth Perforated Expanded Bar Grating Grip Strut® Perf-O Grip® Hex Metal
 
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Contact Information

Phone:
(713) 649-5310
(800) 200-3047

Fax:
(713) 649-5305

Mailing Address
Marco Specialty Steel, Inc.
P.O. Box 590643
Houston, Texas 77259-0643

Physical Address
Marco Specialty Steel, Inc.
6633 Lindbergh
Houston, Texas 77087
 


3" Channel Height

 PRODUCT SELECTION / DESIGN TABLES
GAUGE WIDTH WEIGHT
/LF
  SPAN
2'-0" 3'-0" 4'-0" 5'-0" 6'-0" 7'-0" 8'-0" 9'-0" 10'-0" 11'-0" 12'-0"
18 12" 3.9 U
D
C
D
1057
.02
529
.01
611
.07
529
.03
345
.12
529
.07
222
.19
529
.14
155
.28
472
.22
114
.39
405
.31
88
.51
354
.41
70
.65
316
.52
57
.80
287
.64
48
.98
263
.79
41
1.20
244
.95
9" 3.3 U
D
C
D
1881
.03
705
.01
840
.08
705
.04
472
.13
705
.11
302
.21
567
.17
210
.31
472
.24
154
.42
405
.33
118
.55
354
.44
93
.68
315
.55
76
.86
283
.68
62
1.01
258
.82
52
1.21
236
.98
6" 2.8 U
D
C
D
2834
.04
1058
.02
1260
.07
945
.06
709
.13
709
.11
453
.21
567
.16
315
.29
472
.23
231
.39
405
.32
177
.52
354
.42
140
.66
315
.53
113
.80
283
.65
94
.99
258
.60
79
1.19
236
.93
16 12" 4.8 U
D
C
D
1276
.02
638
.01
775
.07
638
.03
438
.12
638
.07
282
.20
638
.15
197
.28
591
.23
160
.45
559
.36
123
.59
492
.47
98
.75
440
.60
80
.93
398
.74
66
1.13
365
.90
56
1.35
337
1.08
9" 4.1 U
D
C
D
2275
.03
851
.01
1029
.07
851
.04
581
.13
851
.11
373
.21
700
.17
261
.30
587
.24
193
.41
506
.33
149
.54
446
.44
118
.69
400
.56
97
.87
363
.69
81
1.06
333
.85
69
1.27
309
1.02
6" 3.4 U
D
C
D
3418
.03
1134
.02
1519
.07
1134
.05
854
.12
854
.10
547
.20
684
.15
380
.28
570
.23
279
.39
480
.31
214
.50
427
.40
169
.64
380
.51
137
.79
342
.63
113
.95
310
.76
95
1.13
286
91
14 12" 5.9 U
D
C
D
1461
.02
730
.01
950
.07
730
.03
536
.13
730
.07
345
.20
730
.14
241
.29
722
.23
178
.40
622
.32
137
.53
548
.42
109
.67
491
.54
89
.84
446
.67
74
1.02
409
.82
63
1.23
379
.98
9" 5.1 U
D
C
D
2597
.03
974
.01
1477
.09
974
.04
831
.16
974
.10
532
.25
974
.20
369
.36
831
.28
271
.48
712
.38
208
.63
623
.50
164
.79
554
.63
133
.98
498
.78
110
1.19
453
.95
92
1.40
415
1.12
6" 4.3 U
D
C
D
4984
.04
1461
.02
2215
.09
1461
.06
1246
.15
1246
.12
797
.24
997
.19
554
.34
831
.27
407
.46
712
.36
311
.60
623
.48
246
.76
554
.61
199
.94
498
.75
165
1.14
453
91
138
1.35
415
1.08
NOTES:
1. THESE TABLES ARE PREPARED BASED ON TESTS CONDUCTED IN ACCORDANCE WITH THE 1980 EDITION, SECTION 6.2, OF THE AMERICAN IRON AND STEEL INSTITUTE SPECIFICATION FOR THE DESIGN OF COLD-ROLLED STEEL STRUCTURAL MEMBERS WITH THE RESULTS CHECKED AND ADJUSTED WHERE REQUIRED BY CALCULATIONS IN ACCORDANCE WITH SECTION 2 OF THE SAME SPECIFICATION.

2. SYMBOLS ARE AS FOLLOWS: U = ALLOWABLE SIMPLE SPAN UNIFORM LOAD (LBS./FT), C = ALLOWABLE SIMPLE SPAN CONCENTRATED LINE LOAD (LB.) AT MIDSPAN, D = VERTICAL DEFLECTION (IN.) AT MIDSPAN.

3. SPANS TO THE LEFT OF THE HEAVY LINE PRODUCE DEFLECTION OF 1/4" OR LESS UNDER A UNIFORM LOAD OF 100 LBS. PER SQUARE FOOT.

 
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