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Heavy Duty Bar Grating

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25800.711.4939www.directmetals.comHeavy Duty Welded Steel (W Series)SLIP-NOT Grip Grate Safety Surface AvailablePlain Surface Serrated SurfaceHeavy Duty Welded Grating ranges in size from 1-1/4" X 1/4" bearing bars through6" x 1/2" (7" bearing bars available byinquiry). Standard bearing bar spacings are 15/16", 13/16",1-3/8", 1-7/8", and 2-3/8"center-to-center. See pages 25 and 27 for standard cross bar design. Rectangular cross bars are also available. Standard cross bar spacings are 4" or 2"center-to-center. HOW TO SPECIFY: 1. Grating: Heavy Duty Welded Steel W Series by Direct Metals® or approved equal. 2. Bearing Bars: To be (size) rectangular  barspaced(asspecied)inches center-to-center. (Note: Bearing bar size selection and spacing must be coordinated with the load and span conditions.) 3. Cross Bars: To be (size) spaced 4" center-to-center and welded at right   anglestobearingbarswithonellet at each bearing bar/cross bar intersection. (Note: 2" cross bar  spacingmaybespeciedformaximum lateral stability.) 4. Surface: Plain. (Note: A serrated   surfacemaybespeciedfor maximum skid resistance.) 5. Loading: Shallbespeciedbythe architect/engineer in terms of uniform load/sq. ft., concentrated load/ft. of grating width or by wheel load designation. Loading, bearing bar size, bearing bar spacing and span conditions must be coordinated. 6. Finish: Galvanized or manufacturer’s standard black paint at the discretion of the architect/engineer. 7. Fabrication and Tolerances: In accordance with the NAAMM Heavy Duty Metal Bar Grating Manual.GRATING TYPESHEAVY DUTY WELDED STEEL W SERIESFortrafcareasrunningperpendicularto the span direction, supplementary bottom crossbarsmaybespeciedtoprovideadded lateral stability and impact resistance.BAR GRATING

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26www.directmetals.com800.711.4939BAR GRATINGHeavy Duty Welded Steel 19-W-4/19-W-21 x 1/41 x 3/81 - 1/4 x 1/41 - 1/4 x 3/81 - 1/2 x 1/41 - 1/2 x 5/161 - 1/2 x 3/81 - 3/4 x 1/41 - 3/4 x 3/82 x 1/42 x 5/162 x 3/82 - 1/4 x 1/42 - 1/4 x 3/82 - 1/2 x 1/42 - 1/2 x 5/162 - 1/2 x 3/83 x 1/43 x 5/163 x 3/83 x 1/23 - 1/2 x 1/43 - 1/2 x 3/83 - 1/2 x 1/24 x 1/44 x 5/164 x 3/84 x 1/24 - 1/2 x 1/44 - 1/2 x 3/84 - 1/2 x 1/25 x 1/45 x 5/165 x 3/85 x 1/25 - 1/2 x 1/45 - 1/2 x 3/85 - 1/2 x 1/26 x 1/46 x 5/166 x 3/86 x 1/29.7114.0111.8717.2314.0117.2320.4616.1623.6718.3022.6026.8920.4630.1222.6027.9633.3428.3234.7641.2054.0932.6147.6562.6736.9145.5054.0971.2641.2060.5379.8545.5056.2466.9788.4449.7973.4297.0354.0966.9779.85105.620.4210.6320.6580.9870.9471.1841.4211.2891.9341.6842.1052.5262.1323.1972.6323.2893.9473.7894.7375.6847.5795.1587.73710.3166.7378.42110.10513.4738.52612.78917.05210.52613.15815.78921.05212.73719.10525.47315.15818.94722.73630.3150.2110.3160.4110.6170.7110.8881.0661.1281.6921.6842.1052.5262.3983.5973.2894.1124.9345.6847.1058.52611.3689.02613.53918.05213.47316.84220.21026.94719.18428.77638.36726.31532.89439.47352.63035.02552.53870.05145.47356.84168.20990.94579101413161917252228332841344250496067*78*6685*9685*95*96969696969696969696969696969696688101011131217151821182622273130374457405875*51637591*6494*967896969694969696969696799121113141418161922192622273130364355395672*50617288*619096759296968996969696969691112141416181721202326233127313635424961*456476*577080*92*7095*968596969696969696969696Bar Size,Inches Wt.**Lbs.Sq. FtSx**, in3Ft. Widthlx**, in4Ft. WidthSection Properties Maximum Safe Clear Span, Inches-Partially Distributed Load1 Ton 3 Ton 5 Ton H15/H20BBSizeThru2 - 1/2"4"cc2"cc72%65%67%61%62%56%74%70%69%65%64%60%54%51%4"cc2"cc3" to 6"CBCtrs1/4" 5/16" 3/8" 1/2"Bearing Bar Thickness% Open Area**Spanlimitedto1/400ofspan=Deection.**Basedon10.105bars/ftofgratingwidth.Bearingbars1-3/16"c.c.Whenserratedgratingisspecied,thedepthofgratingrequiredforaspecicloadwill be 1/4" greater than that shown in these tables. Weights shown are for 4" cross bar centers. Add 1.13 lbs/sq. ft. (3/8" Dia.) or 2.55 lbs/sq. ft. (1" x 1/4") for 2" cross bar centers. Cross bars are determined based on project applications and bearing bar height.

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27800.711.4939www.directmetals.comBAR GRATINGHeavy Duty Welded Steel - 19 Space1 x 1/41 x 3/81 - 1/4 x 1/41 - 1/4 x 3/81 - 1/2 x 1/41 - 1/2 x 5/161 - 1/2 x 3/81 - 3/4 x 1/41 - 3/4 x 3/82 x 1/42 x 5/162 x 3/82 - 1/4 x 1/42 - 1/4 x 3/82 - 1/2 x 1/42 - 1/2 x 5/162 - 1/2 x 3/83 x 1/43 x 5/163 x 3/83 x 1/23 - 1/2 x 1/43 - 1/2 x 3/83 - 1/2 x 1/24 x 1/44 x 5/164 x 3/84 x 1/24 - 1/2 x 1/44 - 1/2 x 3/84 - 1/2 x 1/25 x 1/45 x 5/165 x 3/85 x 1/25 - 1/2 x 1/45 - 1/2 x 3/85 - 1/2 x 1/26 x 1/46 x 5/166 x 3/86 x 1/2Bar Size,InchesLoads are theoretical, and are based on a unit stress of 20,000 psi.1'- 0" 1'- 6" 2'- 0" 2'- 6" 3'- 0" 3'- 6" 4'- 0" 4'- 6" 5'- 0" 5'- 6" 6'- 0" 8'- 0"7'- 0"BBSizeThru2 - 1/2"4"cc2"cc72%65%67%61%62%56%74%70%69%65%64%60%54%51%4"cc2"cc3" to 6"CBCtrs1/4" 5/16" 3/8" 1/2"Bearing Bar Thickness% Open Area*Maximum Safe Concentrated Load*, Lbs. - Clear Span28074213438765806313789394738593128931122714033168401421321313175472192726313252603158037893505273438751580421343187128092924438742095262631657298596748493561122794761420911698146181754216840210532526233684229243438745849299423742744911598803789356840140321072193329031573947473742976447561370178420106578773109631315712630157901894725263171932579034387224572807033683449102842042630568403508743860526301123168517552632252531573789343751574491561367365685852570198771105251010412632151572021113755206322750917965224562694735928227363410445472280693508842104561393396550947936140414622193210426313158286442983742467856134738710458497309877184201052712631168421146217193229241497118713224562994018947284203789323391292403508746782283044245656607336844210450524802120412531880180422552707245536843208401048114061609050136265751872179023108271443698251473719650128321604019248256631624024360324802005025063300744009924261363904852028872360904330757743109716451578197323682148322328073508421035535328438754826578631578959473126328597128951719311228140351684222455142102131528420175432193026315350872122831842424552526331578378935052514031754210519102865249531193742315947363899487358475613701884211122876411146215283998112476149701996012631189472526215594194932339131188188702830437738224562807033683449111719257922452807336828434263350943855263505263167579101056877103161375589831122813473179641136817052227361403517544210522806916983254733396420211252633031540420258438753190398747844593574268909187625293781250481661020712248163311033515502206691275915949191382551815439231583087618373229662755936745292436544386421052636316842157318597114627486935711228149709473142101894711696146201754323391141522122828303168422105225262336834912736998256416802096241283181201218016240100251253115037200501213018195242601443618045216532887171051065814210877210965131581754310614159212122812632157891894725263*Basedon10.105bars/ft.ofgratingwidth.Bearingbars1-1/16"c.c.Note:Whenserratedgratingisspecied,thedepthofgratingrequiredforaspecicload will be 1/4" greater than that shown in these tables19-W-4 & 19-W-2 Panel Width Chart (in.) Dimensions Are Out-to-Out of Bearing Bars** No. of Bars 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 1/4" Bars 1-7/16 2-5/8 3-13/16 5 6-3/16 7-3/8 8-9/16 9-3/4 10-15/16 12-1/8 13-5/16 14-1/2 15-11/16 16-7/8 18-1/16 5/16" Bars 1-1/2 2-11/16 3-7/8 5-1/16 6-1/4 7-7/16 8-5/8 9-13/16 11 12-3/16 13-3/8 14-9/16 15-3/4 16-15/16 18-1/8 3/8" Bars 1-9/16 2-3/4 3-15/16 5-1/8 6-5/16 7-1/2 8-11/16 9-7/8 11-1/16 12-1/4 13-7/16 14-5/8 15-13/16 17 18-3/16 1/2" Bars 1-11/16 2-7/8 4-1/16 5-1/4 6-7/16 7-5/8 8-13/16 10 11-3/16 12-3/8 13-9/16 14-3/4 15-15/16 17-1/8 18-5/16 No. of Bars 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 1/4" Bars 19-1/4 20-7/16 21-5/8 22-13/16 24 25-3/16 26-3/8 27-9/16 28-3/4 29-15/16 31-1/8 32-5/16 33-1/2 34-11/16 35-7/8 5/16" Bars 19-5/16 20-1/2 21-11/16 22-7/8 24-1/16 25-1/4 26-7/16 27-5/8 28-13/16 30 31-3/16 32-3/8 33-9/16 34-3/4 35-15/16 3/8" Bars 19-3/8 20-9/16 21-3/4 22-15/16 24-1/8 25-5/16 26-1/2 27-11/16 28-7/8 30-1/16 31-1/4 32-7/16 33-5/8 34-13/16 36 1/2" Bars 19-1/2 20-11/16 21-7/8 23-1/16 24-1/4 25-7/16 26-5/8 27-13/16 29 30-3/16 31-3/8 32-9/16 33-3/4 34-15/16 36-1/8

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28www.directmetals.com800.711.4939BAR GRATINGHeavy Duty Welded Steel 22-W-4/22-W-21 x 1/41 x 3/81 - 1/4 x 1/41 - 1/4 x 3/81 - 1/2 x 1/41 - 1/2 x 5/161 - 1/2 x 3/81 - 3/4 x 1/41 - 3/4 x 3/82 x 1/42 x 5/162 x 3/82 - 1/4 x 1/42 - 1/4 x 3/82 - 1/2 x 1/42 - 1/2 x 5/162 - 1/2 x 3/83 x 1/43 x 5/163 x 3/83 x 1/23 - 1/2 x 1/43 - 1/2 x 3/83 - 1/2 x 1/24 x 1/44 x 5/164 x 3/84 x 1/24 - 1/2 x 1/44 - 1/2 x 3/84 - 1/2 x 1/25 x 1/45 x 5/165 x 3/85 x 1/25 - 1/2 x 1/45 - 1/2 x 3/85 - 1/2 x 1/26 x 1/46 x 5/166 x 3/86 x 1/28.5412.2510.4015.0412.2515.0417.8214.1120.5915.9619.6723.3817.8226.1619.6724.3028.9524.8030.3735.9347.0628.5141.5054.4832.2239.6447.0661.8935.9352.6369.3139.6448.9258.1876.7343.3563.7584.1547.0658.1869.3191.570.3640.5450.5680.8520.8181.0231.2271.1141.6701.4551.8182.1821.8412.7612.2732.8413.4093.2734.0914.9096.5454.4546.6828.9095.8187.2738.72711.6367.36311.04514.7279.09111.36313.63618.18111.00016.49921.99913.09116.36319.63626.1810.1820.2730.3550.5330.6140.7670.9200.9741.4621.4551.8182.1822.0713.1062.8413.5514.2614.9096.1367.3639.8187.79511.69315.59011.63614.54517.45423.27216.56824.85133.13522.72728.40834.09045.45330.24945.37460.49839.27249.08958.90778.5436991312151816232125302638313946455564*74*6081*94*7891*96969696969696969696969696969696677991112111514171917242024282733405236536946576886*588596718896968596969696969679911111213131615172018242024282733385035506645546483*558096678296968096969496969691111131315161520182124212824293332384457*415871*51627387*6389*967692969690969696969696Bar Size,Inches Wt.**Lbs.Sq. FtSx**, in3Ft. Widthlx**, in4Ft. WidthSection Properties Maximum Safe Clear Span, Inches-Partially Distributed Load1 Ton 3 Ton5 Ton H15/H20BBSizeThru2 - 1/2"4"cc2"cc75%68%70%64%66%60%77%72%72%68%68%64%60%56%4"cc2"cc3" to 6"CBCtrs1/4" 5/16" 3/8" 1/2"Bearing Bar Thickness% Open Area**Spanlimitedto1/400ofspan=Deection.**Basedon8.727bars/ftofgratingwidth.Bearingbars1-3/8"c.c.Whenserratedgratingisspecied,thedepthofgratingrequiredforaspecicloadwillbe 1/4" greater than that shown in these tables. Weights shown are for 4" cross bar centers. Add 1.13 lbs/sq. ft. (3/8" Dia.) or 2.55 lbs/sq. ft. (1" x 1/4") for 2" cross bar centers. Cross bars aredetermined based on project applications and bearing bar height.

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29800.711.4939www.directmetals.comBAR GRATINGHeavy Duty Welded Steel - 22 Space2427363337875680545368208180742711133970012120145471227318407151531894022727218202727332727436332969344547593933878748487581801 x 1/41 x 3/81 - 1/4 x 1/41 - 1/4 x 3/81 - 1/2 x 1/41 - 1/2 x 5/161 - 1/2 x 3/81 - 3/4 x 1/41 - 3/4 x 3/82 x 1/42 x 5/162 x 3/82 - 1/4 x 1/42 - 1/4 x 3/82 - 1/2 x 1/42 - 1/2 x 5/162 - 1/2 x 3/83 x 1/43 x 5/163 x 3/83 x 1/23 - 1/2 x 1/43 - 1/2 x 3/83 - 1/2 x 1/24 x 1/44 x 5/164 x 3/84 x 1/24 - 1/2 x 1/44 - 1/2 x 3/84 - 1/2 x 1/25 x 1/45 x 5/165 x 3/85 x 1/25 - 1/2 x 1/45 - 1/2 x 3/85 - 1/2 x 1/26 x 1/46 x 5/166 x 3/86 x 1/21618242225243787363645475453495174226467808096988182122711010212627151511454718182218182908919796296983959625858323243878751716327244908912131817189328402727341040903713556748506060727361379203757794701136310910136371636321817148472227329697193932424329090387872454336817490903030337877454539711453151522722181272832722971445338804848581949097363606175769091872810909130911745311877178192375715515193952327231029196352945339272242433030136363484832933343997586643490943635523638091211126218931818227327272476371132334040484940916136505163137576727390911090914544989814849197981292916162193932585816362245443272720202252513030240402244443666448887290913636243636581806931038108216231558194923372122318127713463415635075259433054116493623477929350124678484127281697011082138531662322164140252103828051173162164425973346302095231427419032493531168374024986994714201363170520451857278324253030363730684602378847355682545568188182109087423111371484896971212214545193931227218404245451515218938227273030218333274983666521818272723272743635121215161818165024742156269332332727409033674209505048496061727396966599989913199861910775129291723910908163632181813468168342020126935162962444332591193942424129090387871485222719402424290924553681303137884545436454556545872759398909118797757969711636155159817147271963612121151511818124241146672199929332174552181726181349082232334727553444413239674959595079335399809910799705288161057814104892513388178511101913773165282203813333199992666515868198342380131735252631573788363745465454727249497424989964648081969712929818112272163631010112626151512020112222183322444314546181812181829090424263648485554169278311110827012105191402686581082212987173151047615713209511246815584187012493461369204122737576946911363151519167137491833310909136361636321818Bar Size,InchesMaximum Safe Concentrated Load*, Lbs. - Clear SpanLoads are theoretical, and are based on a unit stress of 20,000 psi.1'- 0" 1'- 6" 2'- 0" 2'- 6" 3'- 0" 3'- 6" 4'- 0" 4'- 6" 5'- 0" 5'- 6" 6'- 0" 8'- 0"7'- 0"BBSizeThru2 - 1/2"4"cc2"cc75%68%70%64%66%60%77%72%72%68%68%64%60%56%4"cc2"cc3" to 6"CBCtrs1/4" 5/16" 3/8" 1/2"Bearing Bar Thickness% Open Area** Based on 8.727 bars/ft of grating width. Bearing bars 1-3/8" c.c. Note:Whenserratedgratingisspecied,thedepthofgratingrequiredforaspecicloadwillbe1/4"greater than that shown in these tables.