Expanded Metal

7

2.0 lb-3.0 lb-4.0 lb-5.0 lb-6.25 lb-7.0 lb 3.14 lb 4.27 lb

StyleWeight inlbs. perC.S.F

StandardSizes in

Feet

Size ofOpenings in

inches

Center toCenter ofBond in inches

Size ofStrands in

inches

Percent OpenArea

No. ofDiamonds

per ft. SWD

OverallThicknessin inches

Plain Galv. Width Length Width Length Width Length Width Thickness2 lb 200 218 4-6 8 1.000 3.600 1.333 5.330 0.235 0.135 77 9 0.4603 lb 300 320 4-6 8-10 0.938 3.438 1.333 5.330 0.261 0.183 73 9 0.500

3.14 lb 314 334 4-6 8-10 1.625 4.875 2.000 6.000 0.308 0.250 74 6 0.5624 lb 400 430 4-5-6 8-10 0.938 3.438 1.333 5.330 0.297 0.215 65 9 0.625

4.27 lb 427 457 4-6 8-10 1.000 2.875 1.412 4.000 0.297 0.250 58 8.5 0.6255 lb 500 550 4-5-6 8-10 0.813 3.375 1.333 5.330 0.327 0.250 52 9 0.625

6.25 lb 625 685 4-6 8-10 0.813 3.375 1.412 5.330 0.347 0.312 55 8.5 0.7507 lb 700 750 4-6 8 0.813 3.375 1.412 5.330 0.388 0.312 60 8.5 0.750

Above conforms to EMMA 557-99

CARBON STEEL GRATING-ASTM A1011

StyleWeight inlbs. perC.S.F

StandardSizes in

Feet

Size ofOpenings in

inches

Center toCenter ofBond in inches

Size ofStrands in

inches

Percent OpenArea

2 lb 200 218 8 4 1.000 3.600 1.333 5.330 0.235 0.135 77 9 0.4603 lb 300 320 8-10 2-2.6-3-4 0.938 3.438 1.333 5.330 0.261 0.183 73 9 0.500

3.14 lb 314 334 8-10 2-2.6-3-4 1.625 4.875 2.000 6.000 0.308 0.250 74 6 0.5624 lb 400 430 8-10 2-2.6-3-4 0.938 3.438 1.330 5.330 0.297 0.215 65 9 0.625

4.27 lb 427 457 8-10 2-2.6-3-4 1.000 2.875 1.412 4.000 0.297 0.250 58 8.5 0.6255 lb 500 550 8-10 2-2.6-3-4 0.813 3.375 1.333 5.330 0.327 0.250 52 9 0.625

6.25 lb 625 685 8 4 0.813 3.375 1.412 5.330 0.347 0.312 55 8.5 0.750Above conforms to EMMA 557-99

CARBON STEEL LONG LENGTH SWD (CATWALK GRATING)-ASTM A 569/569M

2 lb 200 - 4-6 8 1.000 3.600 1.333 5.330 0.235 0.250 77 9 0.460Above conforms to EMMA 557-99

ALUMINUM GRATING-ALLOY 5052 H32

2 lb 200 - 8 2-2.6-3-4 1.000 3.600 1.333 5.330 0.235 0.250 77 9 0.460Above conforms to EMMA 557-99

ALUMINUM LONG LENGTH SWD (CATWALK GRATING)-ALLOY 5052 H32

Plain Width Length Width Length Width Length Width ThicknessSteel 1.590 4-6 8 1.327 6.400 1.550 7.100 0.122 0.131 65Aluminum 0.630 4-6 8 1.250 6.125 1.500 5.330 0.125 0.134 65

Above conforms to EMMA 557-99

ORNAMESH CARBON STEEL-ASTM A A1011-ALUMINUM ALLOY 5005 H34

Expanded Metal Grating

8

GratingStyle 50 100 150 200 250 300 350 400 450 500

2.0#CARBON STEEL

3.0#CARBON STEEL

3.14#CARBON STEEL

4.0#CARBON STEEL

4.27#CARBON STEEL

5.0#CARBON STEEL

Load in Pounds_____________________________________________________________ Deflection in Inches

Clea

rSp

an

Load

Cond

.c

u

c

u

c

u

c

u

c

u

c

u

Deflections shown in shaded areas can be safely used at the discretion of the engineer: however, these deflections exceed 1⁄4".

18" .052 .105 .158 .211 .264 .317 36724" .125 .250 .175 .50030" .244 .48936" .42218" .049 .099 .147 .196 .245 .294 .34324" .156 .313 .46830" .38236" .79124" .068 .132 .197 .263 .329 .395 .46230" .116 .228 .345 .46036" .192 .380 .57042" .280 .56148" .380 .76224" .073 .146 .220 .293 .366 .44030" .155 .311 .46336" .330 .66042" .52724" .049 .094 .140 .187 .234 .280 .326 .372 .420 .46530" .099 .198 .297 .39536" .180 .357 .53542" .225 .455 .68448" .342 .68724" .057 .115 .173 .230 .288 .346 .404 .46230" .129 .259 .388 .51736" .315 .62642" .44948" .74524" .031 .064 .096 .128 .160 .192 .224 .256 .288 .32030" .060 .120 .180 .240 .300 .360 .420 .48036". 101 .205 .310 .402 .505 .60542" .158 .315 .473 .63048" .218 .433 .64824" .037 .073 .111 .147 .184 .222 .259 .296 .333 .37030" .068 .135 .205 .274 .340 .410 .477 .54536" .180 .358 .53642" .283 .56548" .48724" .038 .078 .116 .156 .196 .235 .275 .315 .355 .39530" .081 .163 .245 .327 .409 .49136" .124 .250 .379 .50542" .199 .399 .59848" .242 .480 .72024" .038 .079 .120 .160 .200 .240 .280 .320 .360 .40030" .078 .156 .235 .312 .390 .47036" .186 .373 .56042" .37948" .54224" .023 .047 .070 .093 .116 .140. 164 .186 .210 .23430" .033 .087 .130 .174 .217 .261 .304 .348. 391 .43336" .078 .154 .230 .305 .383 .458 .53542" .103 .206 .310 .414 .515 .61748" .155 .306 .459 .61054" .242 .485 .73024" .025 .050 .075 .100 .125 .150 .175 .200 .225 .25030" .061 .123 .184 .246 .307 .369 .430 .491 .55236" .133 .265 .395 .52642" .200 .400 .60048" .355 .70854" .605

LOAD & DEFLECTION TABLE

Expanded Metal Grating

9

Concentrated Load Lbs. LOAD INPer Foot of Width POUNDS 24" 30" 36" 42" 48" 54" 60"Occasional Pedest. Load(Window Washers)

50# 3.0#3.14#*

3.0#3.14#*

3.0#3.14#*

4.0#4.27#**

4.0#4.27#**

5.0# 6.25#

Normal Pedest. Load 100# 3.0#3.14#*

3.0#3.14#*

4.0#4.27#**

5.0# 6.25#

Heavy Pedest.( With Light Equip.)

150# 3.0#3.14#*

4.0#4.27#**

5.0# 6.25#

200# 3.14#4.0#

4.0#4.27#**

6.25# 7.0#

250# 4.0#4.27#**

5.0#

300# 4.0#4.27#**

6.25#

350# 4.0#4.27#**

6.25#

400# 4.0#4.27#**

6.25#

CLEAR SPAN

This table is a convenient means of selecting grating for typical walk-way installations. If the distance between supports, and the load to be carried are known, the most eco-nomical type of grating to be used may be selected from the table below. Expanded metal grating has its greatest resistance to bending in the direction of the long way of thediamond. The LWD should always be placed across the span for best results.

*3.14# grating in lieu of 3# if the application requires a grating having a larger dia-mond. Example: Outside catwalk in ice and snow.

**4.27# grating may be used in lieu of 4# if the application requires a smaller dia-mond to afford protection from dropped tools and other objects.

AMICO GRATING APPLICATION GUIDE

50 100 150 200 250 300 350 400 450 500Grating

Style

6.25#CARBON STEEL

7.0#CARBON STEEL

2.0#ALUMINUM

Load in Pounds_____________________________________________________________ Deflection in Inches

c

u

Clea

rSp

an

Load

Cond

.

c

u

c

u

24" .015 .030 .045 .060 .075 .090 .105 .120 .135 .15030" .035 .069 .103 .137 .171 .206 .240 .274 .308 .34236" .054 .108 .161 .216 .269 .324 .377 .431 .484 .53742" .084 .166 .247 .329 .412 .492 .67548" .117 .236 .355 .474 .59354" .167 .336 .506 .67060" .225 .452 .68372" .456 .91224" .017 .035 .054 .072 .090 .110 .127 .145 .164 .18130" .045 .091 .135 .180 .226 .270 .316 .360 .405 .45036" .092 .184 .276 .368 .460 .55242" .150 .302 .451 .60248" .285 .57654" .45760" .60630" .030 .061 .090 .121 .152 .182 .212 .242 .273 .30336" .051 .101 .151 .201 .251 .301 .351 .401 .451 .50142" .065 .130 .195 .259 .323 .389 .452 .515 .58048" .095 .190 .282 .376 .470 .56554" .143 .283 .423 .56460" .203 .405 .61072" .355 .70830" .039 .079 .118 .157 .196 .236 .274 .314 .353 .39236" .085 .170 .252 .336 .420 .504 .58742" .126 .255 .385 .512 .64248" .210 .420 .62854" .365 .73160" .55572" 1.08018" .019 .039 .059 .079 .099 .119 .139 .15924" .046 .092 .138 .184 .230 .27730" .092 .181 .269 .36036" .125 .255 .385 .46518" .017 .034 .051 .068 .085 .103 .121 .139 .15724" .047 .094 .141 .189 .236 .28330" .108 .216 .32236" .213 .430

CONCENTRATED LOAD: A load that is concentrated over a small area. Example, apedestrian load, or light equipment load. Concentrated loads are shown in lbs per ft.of grating width measured perpendicular to span. (ie, in SWD Direction)

UNIFORM LOAD: A load that is equally distributed over all of the clear span. Measuredin lbs per sq. ft. (i.e., inventories stacked on shelving.)

DEFLECTION: The deviation in inches from the original plane when the grating isplaced under a load.

CLEAR SPAN: The distance between supporting members measured from the insidebearing point of one supporting member to the inside bearing point of the next sup-porting member.

LOAD & DEFLECTION TABLE