Grating Pacific
Home About Us Products & Services Search Contact Us


Stainless Steel Grating Load Table
More related links...
Stainless Steel Grating
blackdot.gif (807 bytes)

19-4 / 19-2 LOAD TABLE

BEARING BAR
SIZE

UNSUPPORTED SPAN

WEIGHT PER SQ. FT.(LBS.)
2'-0" 2'-6" 3'-0" 3'-6" 4'-0" 4'-6" 5'-0" 5'-6" 6'-0" 6'-6" 7'-0" 8'-0" 9'-0" 19-4 19-2 15-4 15-2 11-4 11-2 7-4 7-2
3/4 X 1/8 U
D
C
D		 395
.114
395
.091		 253
.179
316
.143		 175
.257
263
.206		 129
.350
226
.280		 99
.457
197
.366		 78
.579
175
.463

LOADS AND DEFLECTIONS ARE THEORETICAL VALUES BASED ON 20,000 PSI UNIT STRESS.  FOR PEDESTRIAN COMFORT DEFLECTIONS IN EXCESS OF 1/4" ARE NOT RECOMMENDED.
U=SAFE UNIFORM LOAD, LBS.PER SQ.FT.
C=SAFE CONCENTRATED MID-SPAN LOAD, LBS. PER FT. OF GRATING WIDTH
D=DEFLECTION IN INCHES

 4.0 4.8 4.9 5.7 6.4 7.2 9.7 10.7
3/4 X 3/16 U
D
C
D		 592
.114
592
.091		 379
.179
474
.143		 263
.257
395
.206		 193
.350
338
.280		 148
.457
296
.366		 117
.579
263
.463		 5.6 6.4 6.9 7.7 9.2 10.0 14.5 16.0
1 X 1/8 U
D
C
D		 702
.086
702
.069		 449
.134
561
.107		 312
.193
468
.154		 229
.263
401
.210		 175
.343
351
.274		 139
.434
312
.347		 112
.536
281
.429		 93
.648
255
.519		 78
.771
234
.617

 

 5.1 5.9 6.2 7.1 8.2 9.0 12.9 14.2
1 X 3/16 U
D
C
D		 1053
.086
1053
.069		 674
.134
842
.107		 468
.193
702
.154		 344
.263
602
.210		 263
.343
526
.274		 208
.434
468
.347		 168
.536
421
.429		 139
.648
383
.519		 117
.771
351
.617		 7.4 8.4 9.2 10.2 12.1 13.1 19.4 21.3
1-1/4 X 1/8 U
D
C
D		 1096
.069
1096
.055		 702
.107
877
.086		 487
.154
731
.123		 358
.210
627
.168		 274
.274
548
.219		 217
.347
487
.278		 175
.429
439
.343		 145
.519
399
.415		 122
.617
365
.494		 104
.724
337
.579		 90
.840
313
.672		   6.4 7.4 7.8 8.8 10.3 11.3 15.8 17.1
1-1/4 X 3/16 U
D
C
D		 1645
.069
1645
.055		 1053
.107
1316
.086		 731
.154
1096
.123		 537
.210
940
.168		 411
.274
822
.219		 325
.347
731
.278		 263
.429
658
.343		 217
.519
598
.415		 183
.617
548
.494		 156
.724
506
.579		 134
.840
470
.672		 9.0 10.0 11.2 12.2 14.9 15.9 23.8 25.7
1-1/2 X 1/8 U
D
C
D		 1579
.057
1579
.046		 1011
.089
1263
.071		 702
.129
1053
.103		 516
.175
902
.140		 395
.229
789
.183		 312
.289
702
.231		 253
.357
632
.286		 209
.432
574
.346		 175
.514
526
.411		 149
.604
486
.483		 129
.700
451
.560		 99
.914
395
.731		 78
1.157
351
.926		 7.4 8.4 9.2 10.2 12.1 13.1 18.8 20.0
1-1/2 X 3/16 U
D
C
D		 2368
.057
2368
.046		 1516
.089
1895
.071		 1053
.129
1579
.103		 773
.175
1353
.140		 592
.229
1184
.183		 468
.289
1053
.231		 379
.357
947
.286		 313
.432
861
.346		 263
.514
789
.411		 224
.604
729
.483		 193
.700
677
.560		 148
.914
592
.731		 117
1.157
526
.926		 11.1 12.5 13.7 15.1 18.1 19.6 28.1 30.1
1-3/4 X 3/16 U
D
C
D		 3224
.049
3224
.039		 2063
.077
2579
.061		 1433
.110
2149
.088		 1053
.150
1842
.120		 806
.196
1612
.157		 637
.248
1433
.198		 516
.306
1289
.245		 426
.370
1172
.296		 358
.411
1075
.353		 305
.517
992
.414		 263
.600
921
.480		 201
.784
806
.627		 159
.992
716
.793		 12.7 14.1 15.7 17.1 20.9 22.3 32.5 34.4
2 X 3/16 U
D
C
D		 4211
.043
4211
.034		 2695
.067
3368
.054		 1871
.096
2807
.077		 1375
.131
2406
.105		 1053
.171
2105
.137		 832
.217
1871
.174		 674
.268
1684
.214		 557
.324
1531
.259		 468
.386
1404
.309		 399
.453
1296
.362		 344
.525
1203
.420		 263
.686
1053
.549		 208
.868
936
.694		 14.3 15.7 17.8 19.2 23.7 25.1 36.9 38.8
2-1/4 X 3/16 U
D
C
D		 5329
.038
5329
.030		 3411
.060
4263
.048		 2368
.086
3553
.069		 1740
.117
3045
.093		 1332
.152
2664
.122		 1053
.193
2368
.154		 853
.238
2132
.190		 705
.288
1938
.230		 592
.343
1776
.274		 505
.402
1640
.322		 435
.467
1523
.373		 333
.610
1332
.488		 263
.771
1184
.617		 15.9 17.4 19.8 21.2 26.5 27.9 41.3 43.2
2-1/2 X 3/16 U
D
C
D		 6579
.034
6579
.027		 4211
.054
5263
.043		 2924
.077
4386
.062		 2148
.105
3759
.084		 1645
.137
3289
.110		 1300
.174
2924
.139		 1053
.214
2632
.171		 870
.259
2392
.207		 731
.309
2193
.247		 623
.362
2024
.290		 537
.420
1880
.336		 411
.549
1645
.439		 325
.694
1462
.555		 17.5 19.0 21.8 23.3 29.2 30.7 45.6 47.5
NOTE: WHEN GRATINGS WITH SERRATED BEARING BARS ARE SELECTED, THE DEPTH OF GRATING REQUIRED TO SERVICE A SPECIFIED LOAD WILL BE 1/4" GREATER THAN THAT SHOWN IN THE TABLES ABOVE.

 

CONVERSION TABLE

The loads shown above are for type 19-4 and 19-2 gratings.  To determine the load capacity for alternative bar spacings, multiply the loads given by the following conversion factors (DEFLECTION REMAINS CONSTANT):
FOR TYPES 15-4 AND 15-2: 1.26 FOR TYPES 11-4 AND 11-2: 1.72 FOR TYPES 7-4 AND 7-2: 2.71

 

SELECTION GUIDE: 19-4 PLAIN SURFACE GRATING

For deflection of not more than 1/4" when subjected to the severest of the following: (1) the uniform loads below; (2) under concentrated mid-span loads of 300 lbs. up to 6'-0" span; or (3) 400 lbs. for spans 6'-0" and over.

safe unif.
load lbs./
sq.ft.

2'-6"

 3'-0"

  3'-6" 

4'-0"

4'-6"

 5'-0" 5'-6" 6'-0" 6'-6" 7'-0" 8'-0" 9'-0"
50
75
100
125
150
200
300		 1 x 1/8
1 x 1/8
1 x 1/8
1 x 1/8
1 x 1/8
1 x 1/8
1 x 1/8		 1 x 1/8
1 x 1/8
1 x 1/8
1 x 1/8
1 x 1/8
1 x 1/8
1 x 1/8		 1 x 1/8
1 x 1/8
1 x 1/8
1 x 1/8
1 x 1/8
1 x 1/8
1x3/16		 1 x 1/8
1 x 1/8
1 x 1/8
1 x 1/8
1 x 3/16
1-1/4 x 1/8
1-1/4 x 3/16		 1 x 3/16
1 x 3/16
1 x 3/16
1-1/4 x 1/8
1-1/4 x 1/8
1-1/4 x 3/16
1-1/2 x 3/16		 1-1/4 x 1/8
1-1/4 x 1/8
1-1/4 x 1/8
1-1/4 x 3/16
1-1/4 x 3/16
1-1/2 x 3/16
1-3/4 x 3/16		 1-1/4 x 3/16
1-1/4 x 3/16
1-1/4 x 3/16
1-1/2 x 3/16
1-1/2 x 3/16
1-3/4 x 3/16
2 x 3/16		 1-1/2 x 3/16
1-1/2 x 3/16
1-1/2 x 3/16
1-1/2 x 3/16
1-1/2 x 3/16
1-3/4 x 3/16
2 x 3/16		 1-3/4 x 3/16
1-3/4 x 3/16
1-3/4 x 3/16
1-3/4 x 3/16
2 x 3/16
2 x 3/16
2-1/4 x 3/16		 1-3/4 x 3/16
1-3/4 x 3/16
1-3/4 x 3/16
2 x 3/16
2 x 3/16
2-1/4 x 3/16
2-1/2 x 3/16		 2 x 3/16
2 x 3/16
2-1/4 x 3/16
2-1/4 x 3/16
2-1/2 x 3/16
-
-		 2-1/4 x 3/16
2-1/4 x 3/16
2-1/2 x 3/16
-
-
-
-