19W4 19P4 19W2 19P2 - Merger Metals LLC

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.

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)
Bar Size	Symbol	# per sf	Sec. Mod per ft. of width		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
3/4″ x 1/8″ Non-Serrated Only	19P4 19P2	4.3 5.2	0.12	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
3/4″ x 3/16″ Non-Serrated Only	19P4 19P2	6.4 7.8	0.18	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
1″ x 1/8″	19P4 19P2	5.4 6.3	0.21	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
1″ x 3/16″	19P4 19P2	8.1 9.5	0.32	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
1-1/4″ x 1/8″	19P4 19P2	6.8 8.1	0.33	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
1-1/4″ x 3/16″	19P4 19P2	10.2 12.1	0.49	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
1-1/2″ x 1/8″	19P4 19P2	7.9 9.2	0.47	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
1-1/2″ x 3/16″	19P4 19P2	11.8 13.8	0.71	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
1-3/4″ x 3/16″	19P4 19P2	13.5 15.4	0.97	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
2″ x 3/16″	19P4 19P2	15.2 17.1	1.26	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
2-1/4″ x 3/16″	19P4 19P2	16.8 18.7	1.6	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
2-1/2″ x 3/16″	19P4 19P2	18.5 20.4	1.97	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

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

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

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″