Bar Grating

Our industrial metal gratings are available as stock panels or are custom fabricated to your size and specifications. This includes options available in stair treads. Stair treads can be custom fabricated to your needs with both smooth or serrated surfaces, and a variety of non-slip nosing options.

Offered as bar gratings, & plank gratings/planks, we have a choice of standard spacing for normal pedestrian traffic or close mesh for high heels or ADA compliance.

Material options include plain steel, galvanized steel, aluminum, or stainless steel. Our fiberglass reinforced plastic (FRP) industrial grating options are pultruded, I-bar, or molded.

We have many types of gratings available:

  • Welded Steel and Pressure-Locked: Permanent locking solutions that can withstand extreme pressure. Cross bars remain in a fixed position for a uniform appearance. Our products are ideal for industrial or architectural installations as light and air are allowed to pass through.
  • Swage-Locked: A type of grating useful for industrial applications involving liquids. Swage-locked grating consists of cross bars lined through preexisting holes in a metal material. Aluminum swage-locked grating is a popular choice for industrial walkways and platforms.
  • Riveted: An industrial form of grating featuring a series of crimp bars. Riveted grating products allow users to create durable joints when fastening metal surfaces together.
  • Reticuline: Industrial grating products with rounded metal connections. Reticuline grating is excellent for stair treads and platforms where slipping is a concern.
  • I-Bar: A lightweight metal grating configuration that offers exceptional strength. Straight weight-bearing bars leave room to draw up walkways, platforms, and stairs based on the dimensions of your facility.
  • Extruded Plank: Industrial grating products with intricate vents. Extruded plank grating is perfect for catwalks and industrial walkways, as designs are engineered for maximum traction. Allow air, light, and heat to pass through metal without compromising safety initiatives in your plant or facility.
  • X-Bar Press-Locked: Metal products that have cross bars connecting at a slight angle. Here, manufacturing procedures result in surfaces that have “X” shape designs throughout.

Bar grating thicknesses measure .75″ to 6″ high. Finishes offered are mill finish, painted, powder coated, or galvanized with either smooth top or a serrated top. Grating can have either untrimmed ends (open fingers), or trim banded (closed ends).

Grating can be provided to comply with the Americans with Disabilities Act if requested. All of our gratings are load tested to ensure strength and safety. On large fabricated jobs, we will prepare drawings for your approval and erection.

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Intended Applications

  • Industrial Flooring
  • Catwalks
  • Pedestrian Stair treads
  • Bridge Decking
  • Sanitation Dumps
  • Roadway H20 Loading
  • Residential Decks
  • American Disabilities Act (ADA) Compliant
  • Wheelchair Ramps
  • Mezzanine Flooring
  • Sidewalk Grates
  • Trench Grates
  • Machine Platforms
  • Wastewater Treatment
  • Railing Infill Panels
  • Architectural Applications
  • Dry Dock – Ship Repair
  • Footbridge
  • Air Vent Grates
  • Freight Car Roof-walks
  • Paint Booths
  • Heavy Equipment Radiator Grills
  • Vestibule Grates
  • Fire Escapes
  • Running Boards
  • Tree Guards
  • Truck Beds
  • Wash Racks

Most Common Types of Metal Bar Grating

Welded Bar Grating

Welded Steel Grating is made by welding steel cross bars to steel load bars. An economical product, welded steel gratings are suitable for walkways, platforms, metal catwalks, stair treads, mezzanine decking, security screens and general industrial and commercial purposes. Welded grating is produced in carbon, galvanized, and stainless steel alloys.

Pressure Locked Grating

Pressure locked grating is among the most versatile types of metal grating because as it offers a wide variety of bar spacings. Pressure locked grating is the grating of choice for architectural applications, including close mesh grating for ADA applications, for high traffic public pedestrian areas, decorative facades and ornamental grilles. Argus Steel offers pressure locked grating in a full-range of materials: carbon steel, galvanized steel, aluminum, and stainless steel.

Swage Grating

Swage locked grating is the most common type of aluminum bar grating. Assembled by punching a square cross bard through the aluminum bearing bars, ultimately locking the grating into place through a swaging process. Ideal for walkways in areas where material weight is a concern, aluminum grating offs a more lightweight alternative to steel and stainless steel grating.


Argus Steel is dedicated to providing customers industrial metal grating panels for projects ranging in size. Our professionals want to help you maintain a safe working environment for your industrial applications, so a large portion of our inventory is compliant with the Americans with Disabilities Act (ADA) of 1990. Speak to one of our experts about our welded, swage-locked, and press-locked steel floor grates for sale to ensure you stay up to code.

One of our representatives will introduce you to industrial grating solutions that abide by the following guidelines of the ADA:

  • Grate openings less than 0.5″ in diameter (walkway surfaces).
  • Metal grating products that have a static coefficient of friction of 0.6 or more (slip resistance).

Argus Steel takes the time to learn the details of your upcoming project to make recommendations for our custom fabricated industrial metal grating products. Tell us more about your commercial applications, and we will connect you to products for indoor and outdoor installations.

How to Order Industrial Grating

Grating Terminology Diagram
Size and Type (Bar Grating)
  • Type of grating – welded, pressure-locked, swage-locked, riveted.
  • type of material – steel, galvanized, stainless, aluminum, or fiberglass.
  • Bearing bar size – depth and thickness – 1” x 3/16”
  • Bearing bar spacing, center-to-center – 19-W-4 = 19/16” or 1-3/16” on center.
  • Cross bar spacing – center-to-center – 19-W-4 = 4” on center
  • Span direction – direction of bearing bars
  • Grating finish – mill, painted, powder-coated or galvanized
  • Smooth or serrated
Drawing Showing: (If layout is complicated)
  • Area to be covered – all critical dimensions
  • Span (direction of bearing bars)
  • Method of support
  • Banding, toe plate or nosing
  • Treads – size, description and type of nosing
Types of Anchors Required:
  • Saddle clip
  • Anchor block
  • Tack weld
  • Z clip
  • Plank lug


1-1/4” x 3/16” 19W4 steel grating, galvanized, 12 pcs. 3’ x 15”- 6” span

2” x 3/8” 22W4 steel grating, mill finish, 6 panels 3’ x 20’ span


Argus Steel is a national distributor of industrial metal products. Our extensive stock list and quick shipping timelines make it possible for you to keep assignments on schedule and ensure minimal downtime. Take advantage of our no-minimum orders by calling 800.368.2082 or requesting a free quote today!

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How to Order