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Welded Bar Grating

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Welded Bar Grating Product Information

Welded bar grating is an economical design ideal for most industrial applications. It is manufactured by forge welding rectangular bearing bars and drawn cross bars creating a positive fused connection providing years of service under the most demanding conditions.
Welded Bar Grating is available in type “W” Welded Steel or type “WS” Welded Stainless Steel. It is available with bearing bar spacing ranging from 19/16″ (1-3/16″) to 7/16″ on center and with cross bars at either 4″ or 2″ on center. Welded Bar Grating is available with the standard plain or optional serrated surface. 

Type "W" Welded Steel Grating
Our most economical steel grating products, type “W” Welded Steel Gratings are manufactured by forge welding rectangular bearing bars and drawn cross bars. This welding process provides a positive fused connection providing years of service under the most demanding conditions. Type 19-W-4 steel grating is our most popular product and is recommended for nearly all industrial flooring applications. With nearly 80% open area, 19-W-4 allows for the easy passage of dirt, debris, snow and liquids and is essentially self-cleaning. Type “W” gratings are available in close mesh ADA conforming spacings 11-W-4 (IGtru™) and 7-W-4, which are commonly used in public areas. When specifying type 11-W-4 for ADA applications, 3/16” thick bearing bars must be specified.
Type 11-W-4 Welded Steel Grating
Type 19-WS-4 Welded Stainless Steel Grating
Type "WS" Welded Stainless Steel Grating

Our strongest and most economical stainless product, type “WS” welded stainless steel gratings are manufactured by forge welding rectangular bearing bars and drawn cross bars. This welding process provides a positive fused intersection providing years of service under the most demanding conditions.
Type “WS” stainless steel gratings are available in “19 space” (1-3/16″), “15 space” (15/16″) and “11 space” (11/16″) bearing bar centers. Standard cross bar spacing is 4″ on center.

Stair Treads:

For information on Stair Treads click here.

Tables and Charts

Load Tables

Tables of Spacing

Welded Grating Finishes

 
Type “W” welded steel grating is usually provided with bare steel (no finish), painted with one coat of IG EcoCoat™ or other special paint finishes, or hot dip galvanized in accordance with ASTM A-123.
 
Due to discolorization that occurs during welding and fabrication, Type “WS” welded stainless steel grating products typically require secondary cleaning. IG EcoClean™, abrasive blasting, and passivation provide a uniform and clean surface. 
 
All grating can be provided with specialty finishes including enamel or epoxy paints or powder coating. When considering specialty finishes, consultation with the coating manufacturer is essential.

Mill Finish

Products left unfinished will display discoloration from welding, cutting and grinding. Satisfactory for industrial or process applications where appearance is not a consideration.

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Galvanized

Hot dip galvanized in accordance with ASTM A-123. Galvanized finish is used to resist rust.

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IG GritWeld™

IG GritWeld™ utilizes processes developed for thermal sprayed hard surfacing and incorporates anti-skid ingredients to the super hard substrate. IG GritWeld™ offers the ultimate in traction and longevity for extreme environments. It is usually applied after galvanizing but can be applied prior to the coating process as well.

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IG EcoCoat™ - Standard Black Paint

IG EcoCoat™ is an economic and eco-friendly solution. It is dipped in one shop coat of our specially produced gloss black paint providing a protectant cover.

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IG EcoClean™ - Stainless Steel

Stainless Steel products typically require secondary cleaning. IG EcoClean™ provides a uniform and clean finish by abrasive blasting followed by passivation to remove manufacturing contaminants.

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Fasteners

Saddle Clips

Bent clips bridging two bearing bars, available in galvanized steel, stainless steel or aluminum. Standard bolt holes are 5/16″.

Tek Screws

 
Clima Seal or Stainless Steel Tek Screws are available to order upon request.

“G” Clips

Mechanical fasteners that are installed on the top surface of the grating and create a friction connection with the flange supporting the panel. “G” clips are easily installed without drilling or welding.

Weld Lugs

Plates punched with holes and shop welded between the bearing bars to facilitate bolting to the supporting structure. Bolts, screws or other connecting hardware shall be supplied by others.

 

Counter Bore Anchor Tabs

To be used with narrow spacing of close mesh gratings that require a solid fastener. Counter bore allows for the use of self-drilling fasteners which are recessed below the top surface.

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