[vc_row][vc_column width=”2/3″][vc_column_text]U = safe uniform load (psf)
C = safe concentrated load (psf)
D = deflection in inches
E = modulus of elasticity, 29,000,000 (psi)
F = fiber stress, 18,000 (psi)

Material: ASTM-A-1011 standard

Deflection: Spans and loads to the right of the bold line exceed 1/4″ deflection for uniform load of 100 psf which provides safe pedestrian comport. These can be exceeded for other types of loads with engineer’s approval.

Serrated Bars: For serrated grating, the depth of grating required for a specified load is 1/4″ deeper than that shown in the table.[/vc_column_text][vc_column_text][/vc_column_text][/vc_column][vc_column width=”1/3″][vc_single_image image=”139″ img_size=”300×307″][/vc_column][/vc_row][vc_row][vc_column el_class=”table-responsive”][vc_column_text]

LOAD & DEFLECTION TABLE:
Loads and deflections are theoretical and based on static loading.
Bar Size Symbol # per sf Sec. Mod per ft. of width
SAFE SPAN (Direction of Bearing Bar)
2′-0 2′-6 3′-0 3′-6 4′-0 4′-6
3/4″ x 1/8″ Non-Serrated Only 19W4 3.9 0.12 U
D		 355
0.099		 227
0.155		 158
0.223		 116
0.304		 89
0.397		 70
0.503
19P4
19P2		 4.3
5.2		 C
D		 355
0.079		 284
0.124		 237
0.179		 203
0.243		 178
0.318		 158
0.402
3/4″ x 3/16″ Non-Serrated Only 19W4 5.6 0.18 U
D		 533
0.099		 341
0.155		 237
0.223		 174
0.304		 133
0.397		 105
0.503
19P4
19P2		 6.4
7.8		 C
D		 533
0.079		 426
0.124		 355
0.179		 305
0.243		 266
0.318		 237
0.402
5′-0 5′-6
1″ x 1/8″ 19W4
19W2		 5.0
5.5		 0.21 U
D		 632
0.074		 404
0.116		 281
0.168		 206
0.228		 158
0.298		 125
0.377		 101
0.466		 84
0.563
19P4
19P2		 5.4
6.3		 C
D		 632
0.060		 505
0.093		 421
0.134		 361
0.182		 316
0.238		 281
0.302		 253
0.372		 230
0.451
1″ x 3/16″ 19W4
19W2		 7.2
7.8		 0.32 U
D		 947
0.074		 606
0.116		 421
0.168		 309
0.228		 237
0.298		 187
0.377		 152
0.466		 125
0.563
19P4
19P2		 8.1
9.5		 C
D		 947
0.060		 758
0.093		 632
0.134		 541
0.182		 474
0.238		 421
0.302		 379
0.372		 344
0.451
6′-0 6′-6 7′-0
1-1/4″ x 1/8″ 19W4
19W2		 6.1
6.6		 0.33 U
D		 987
0.060		 632
0.093		 439
0.134		 322
0.182		 247
0.238		 195
0.302		 158
0.372		 130
0.451		 110
0.536		 93
0.629		 81
0.730
19P4
19P2		 6.8
8.1		 C
D		 987
0.048		 789
0.074		 658
0.107		 564
0.146		 493
0.191		 439
0.241		 395
0.298		 359
0.360		 329
0.429		 304
0.504		 282
0.584
1-1/4″ x 3/16″ 19W4
19W2		 8.9
9.5		 0.49 U
D		 1480
0.060		 947
0.093		 658
0.134		 483
0.182		 370
0.238		 292
0.302		 237
0.372		 196
0.451		 164
0.536		 140
0.629		 121
0.730
19P4
19P2		 10.2
12.1		 C
D		 1480
0.048		 1184
0.074		 987
0.107		 846
0.146		 740
0.191		 658
0.241		 592
0.298		 538
0.360		 493
0.429		 455
0.504		 423
0.584
8′-0 9′-0
1-1/2″ x 1/8″ 19W4
19W2		 7.2
7.7		 0.47 U
D		 1421
0.050		 909
0.078		 632
0.112		 464
0.152		 355
0.199		 281
0.251		 227
0.310		 188
0.376		 158
0.447		 135
0.524		 116
0.608		 89
0.794		 70
1.006
19P4
19P2		 7.9
9.2		 C
D		 1421
0.040		 1137
0.062		 947
0.089		 812
0.122		 711
0.159		 632
0.201		 568
0.248		 517
0.300		 474
0.358		 437
0.420		 406
0.487		 554
0.636		 316
0.804
1-1/2″ x 3/16″ 19W4
19W2		 10.5
11.2		 0.71 U
D		 2132
0.050		 1364
0.078		 947
0.112		 696
0.152		 533
0.199		 421
0.251		 341
0.310		 282
0.376		 237
0.447		 202
0.524		 174
0.608		 133
0.794		 105
1.006
19P4
19P2		 11.8
13.8		 C
D		 2132
0.040		 1705
0.062		 1421
0.089		 1218
0.122		 1066
0.159		 947
0.201		 853
0.248		 775
0.300		 711
0.358		 656
0.420		 609
0.487		 533
0.636		 474
0.804
1-3/4″ x 3/16″ 19W4
19W2		 12.2
12.8		 0.97 U
D		 2901
0.043		 1857
0.067		 1289
0.096		 947
0.130		 725
0.170		 573
0.215		 464
0.266		 384
0.322		 322
0.383		 275
0.450		 237
0.521		 181
0.681		 143
0.862
19P4
19P2		 13.5
15.4		 C
D		 1901
0.034		 2321
0.053		 1934
0.077		 1658
0.104		 1451
0.136		 1289
0.172		 1161
0.213		 1055
0.257		 967
0.306		 893
0.360		 829
0.417		 725
0.545		 645
0.689
2″ x 3/16″ 19W4
19W2		 13.9
14.5		 1.26 U
D		 3789
0.037		 2425
0.058		 1684
0.084		 1237
0.114		 947
0.149		 749
0.189		 606
0.233		 501
0.282		 421
0.335		 359
0.393		 309
0.456		 237
0.596		 187
0.754
19P4
19P2		 15.2
17.1		 C
D		 3789
0.030		 3032
0.047		 2526
0.067		 2165
0.091		 1895
0.119		 1684
0.151		 1516
0.186		 1378
0.225		 1263
0.268		 1166
0.315		 1083
0.365		 947
0.477		 842
0.603
2-1/4″ x 3/16″ 19W4
19W2		 15.5
16.1		 1.6 U
D		 4796
0.033		 3069
0.052		 2132
0.074		 1566
0.101		 1199
0.132		 947
0.168		 767
0.207		 634
0.250		 533
0.298		 454
0.350		 392
0.406		 300
0.530		 237
0.670
19P4
19P2		 16.8
18.7		 C
D		 4796
0.026		 3837
0.041		 3197
0.060		 2741
0.081		 2398
0.106		 2132
0.134		 1918
0.166		 1744
0.200		 1599
0.238		 1476
0.280		 1370
0.324		 1199
0.424		 1066
0.536
2-1/2″ x 3/16″ 19W4
19W2		 17.2
17.8		 1.97 U
D		 5921
0.030		 3789
0.047		 2632
0.067		 1933
0.091		 1480
0.119		 1170
0.151		 947
0.186		 783
0.225		 658
0.268		 561
0.315		 483
0.365		 370
0.477		 1292
0.603
19P4
19P2		 18.5
20.4		 C
D		 5921
0.024		 4737
0.037		 3947
0.054		 3383
0.073		 2961
0.095		 2632
0.121		 2368
0.149		 2153
0.180		 1974
0.215		 1822
0.252		 1692
0.292		 1480
0.381		 1316
0.483

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19W4 & 19P4 STANDARD PANEL WIDTH (inches)
Note: P-Press-Locked cross bars typically extend 1/8″ each side. W-Welded cross rods may extend 1/8″ each side.
Panel widths do not include these extensions.
No. of Bars 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16
1/8″ Bar 1-5/16″ 2-1/2″ 3-11/16″ 4-7/8″ 6-1/16″ 7-1/4″ 8-7/16″ 9-5/8″ 10-13/16″ 12″ 13-3/16″ 14-3/8″ 15-9/16″ 16-3/4″ 17-15/16″
3/16″ Bar 1-3/8″ 2-9/16″ 3-3/4″ 4-15/16″ 6-1/8″ 7-5/16″ 8-1/2″ 9-11/16″ 10-7/8″ 12-1/16″ 13-1/4″ 14-7/16″ 15-5/8″ 16-13/16″ 18″
No. of Bars 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31
1/8″ Bar 19-1/8″ 20-5/16″ 21-1/2″ 22-11/16″ 23-7/8″ 25-1/16″ 26-1/4″ 27-7/16″ 28-5/8″ 29-13/16″ 31″ 32-3/16″ 33-3/8″ 34-9/16″ 35-3/4″
3/16″ Bar 19-3/16″ 20-3/8″ 21-9/16″ 22-3/4″ 23-15/16″ 25-1/8″ 26-5/16″ 27-1/2″ 28-11/16″ 29-7/8″ 31-1/16″ 32-1/4″ 33-7/16″ 34-5/8″ 35-13/16″

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