Stainless Steel Bar Grating

stainless-steel-bar-gratingStainless Steel Bar Grating Products

Marco Specialty Steel offers stainless steel bar grating products manufactured from alloy types 304, 304L, T304, 316, or 316L. Our stainless steel bar grating products include weldedpressed-locked, stair treads, hold down clips, and we have heavy-duty options for vehicle traffic and industrial uses. 

We have a reliable supply of bar grating panels and can fabricate them into walkways, stairs, platforms, catwalks, bridges, mezzanines, industrial vessel internals, architectural infill panels, and more. 


Stainless Steel Grades Table
Stainless Steel Grades Table

Stainless Steel Bar Grating

Stainless steel bar grating is very strong, durable, and corrosive resistant for load-bearing applications. It is available in a vast number of variations, so it can support everything from pedestrian traffic to light vehicle loads and heavy vehicle traffic. Stainless steel gratings are ideal for sanitary or highly corrosive environments and architectural applications. 

Stainless Steel Bar Grating Products In-Stock

Marco Specialty Steel has been customizing stainless steel bar grating since 1992. Our fabricators are expert craftsmen that read detailed drawings to customize to your specifications. Whether you need grating for industrial or architectural uses, Marco is your bar grating go-to. We keep a large assortment of inventory, including welded stainless steel grating, press-locked stainless steel bar grating, swage-locked stainless steel grating, heavy-duty welded bar grating, stair treads, and architectural bar grating.

welded steel bar grating

Welded Steel:

  • Most popular & versatile
  • Rugged, one-piece panel with rigid crossbars
  • Standard panels measure 2′ or 3′ wide by 20′ or 24′

press locked stainless steel bar grating


  • Features a system of interlocking perpendicular stainless steel bars
  • Offers superior lateral support, strength, and durability
  • Produces a clean smooth look

swage locked stainless steel bar grating


  • Provides lower cost alternative to press-locked grating with the same strength
  • Offers a high strength-to-weight ratio
  • Non-sparking and corrosion resistant

heavy duty bar grating


  • Standard widths: 2′, 3′ & 4′ in 20′ lengths
  • Thicker (1/4″, 5/16″, 3/8″) and deeper bearing bars ranging from 1″ to 8″ deep
  • Custom fabricate on request

bar grating stair treads

Stair Treads:

  • Available in a variety of styles
  • Comes with smooth or serrated surfaces
  • Manufactured with a variety of defined, visible nosings, and pre-punched end or carrier plates, ready for bolting to the stair stringers

Benefits of Stainless Steel Bar Grating

Boost the look and performance of your application with stainless steel bar grating products from Marco Specialty Steel. Stainless steel is ideal for use in caustic atmospheres where corrosion resistance and minimum carbide precipitation are important considerations. It is especially applicable for chemical, food, and hydro-processing areas. A durable, weather-resistant, and visually striking metal alloy, stainless steel expertly balances form and function.

  • Resists corrosion
  • High strength
  • Long cycle life
  • Low weight
  • Easy to clean
  • Recyclable
  • Stands up to extreme temperatures
  • Simple to sterilize
  • Shiny appearance
  • Good weldability
  • Strong formability
  • Resists magnetism, in some cases

    When subjected to impact forces, the surface oxide layer self-heals as long as there is Oxygen, even in small amounts. As a result, you get stainless steel bar grating that sustains nicks, marks, scratches, or other forms of damage that won’t corrode.

      Stainless Steel Grades – Chemical Composition

      Stainless steel is a family of iron-based alloys that contain a minimum of roughly 11 percent chromium, which produces a surface oxide layer that protects against degradation. Specific performance characteristics vary by grade, but the material offers an array of benefits.

      Alloy #CRNiCMn.Max.Si-Max.P.Max.S.Max.Other Elements
      30418.0/20.08.0/11.00.08 Max.
      304L18.0/20.08.0/11.00.03 Max.
      30517.0/19.010.0/13.00.12 Max.
      30819.0/21.010.0/12.00.08 Max.
      30922.0/24.012.0/15.00.20 Max.
      31024.0/26.019.0/22.00.25 Max.
      31423.0/26.019.0/22.00.25 Max.
      31616.0/18.010.0/14.00.08 Max. 2.00/3.00
      316L16.0/18.010.0/14.00.03 Max. 2.00/3.00
      31718.0/20.011.0/15.00.08 Max. 3.00/4.00
      32117.0/19.09.0/12.00.08 Max. 5xC Min.
      33014.0/16.035.0/37.00.25 Max...........................
      34717.0/19.09.0/13.00.08 Max. 10xC Min.
      43014.0/18.0....0.12 Max.

      Stainless Steel Bar Grating Supplier

      Marco Specialty Steel is a leading provider of stainless steel bar grating products for demanding architectural, commercial, and industrial applications. Our area of expertise is fabricating custom bar grating from high-quality stainless steel sheet metal.  In addition to our huge inventory of stock bar grating products, we will custom-fabricate any of our products for your specific applications. Our facility includes an in-house fabrication shop that is equipped with the necessary tools and technical expertise to create the one-of-a-kind product that meets your requirements.

      Stainless Steel Bar Grating Applications

      Stainless Steel bar grating can be used in a vast number of applications that range from flooring and stairs to bridges and sewage drain covers. It is a smart choice for flooring and stairs in work areas where slipping and falling are a major concern, such as industrial plants, wastewater treatment facilities, or manufacturing operations. The open design makes bar grating the best option for areas that require the passage of light. It also works well for projects that require fast, easy fabrication and installation.

      We will work with your existing drawings or blueprints to produce print take-offs that assist you in selecting the perfect stainless steel grating products for just about any application. Our team will work closely with you throughout your customization project. Our focus is on bringing your design concept to life to provide a custom bar grating solution that solves a problem in a timely, cost-effective manner.

      Stainless Steel Grades

      We’re happy to create bar grating products using stainless steel. Letting us source the material saves you time and hassle, freeing you to focus on your core business. Our technicians can handle an array of stainless steel types.

      • Austenitic Stainless Steel – Contain a high percentage of nickel and chromium, which enhance its ability to be welded into any shape while providing resistance to corrosion and great strength.
      • Ferritic Stainless Steel – These are non-magnetic non-heat-treatable steels that have good heat and corrosion resistance and are not hardened by heat treatment, but are marginally hardenable by cold rolling.   
      • Duplex Stainless Steel – These are about twice as strong as regular austenitic or ferritic stainless steel. They are extremely corrosion resistant which is attributed to their chemical composition and balanced microstructure.
      • Martensitic Stainless Steel – Possess high corrosion resistance and its hardness levels are among the highest of all the stainless steel grades. These grades are magnetic and can be hardened by heat treatment.
      Stainless Steel Welded Bar Grating Fabrication
      Stainless Steel Welded Bar Grating Fabrication

      SS Bar Grating Fabricator & Supplier

      Marco Specialty Steel can custom fabricate bar grating products using your print, specification, or purchase order requirements. From a simple weld to a complete catalyst screen, we are here to help. We offer a wide selection of top-quality stock bar grating products for companies in industries such as heavy equipment manufacturing, oil refining, aerospace, and offshore drilling. To see a small sample of our fabrication projects, check out our Fabrication Photo Gallery.

      To ensure total customer satisfaction, we’ve created some free online resources to make the ordering process seamless.

      If you still can’t find what you’re looking for, contact us today by completing our contact form or calling our Houston office at (713)-649-5310.

      Let’s Get Started

      Find out why Marco Specialty Steel is one of the top stainless steel bar grating suppliers in the Houston area and beyond. We’re dedicated to delivering bar grating products that fit and function as intended on time and within budget. Contact us to learn more about our complete menu of bar grating fabrication services and get a no-obligation project quote today. We’d love to discuss your needs in greater detail.

      Marco Specialty Steel: Quality. Speed. Reliability.