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Grating Manufacturers and Suppliers

IQS Directory provides a comprehensive list of grating manufacturers and suppliers. Use our website to review and source top grating manufacturers with roll over ads and detailed product descriptions. Find grating companies that can design, engineer, and manufacture gratings to your companies specifications. Then contact the grating companies through our quick and easy request for quote form. Website links, company profile, locations, phone, product videos and product information is provided for each company. Access customer reviews and keep up to date with product new articles. Whether you are looking for manufacturers of diamond grate, cast iron gratings, frame grating, or customized gratings of every type, this is the resource for you.

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SlipNOT® manufactures an all metal, slip resistant coating that is applied to steel, stainless steel or aluminum gratings. SlipNOT® gratings are available in a variety of standard and ADA compliant styles or SlipNOT® can coat customer supplied material. Utilized for ramps, walkways, mezzanines, staircases and more, SlipNOT® gratings instantly create a safe walking/working surface.
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As one of the largest fabricating service centers, Metals, Inc. produces bar gratings, fiberglass gratings and grip strut safety gratings among its extensive line of metal products. We are a service-oriented business which strives to meet your floor grating needs. Contact us today!
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All of our gratings are pre-tested to ensure their performance capabilities. These gratings can handle a large range of applications. We are dedicated to adhering to all of our customers' requests. These unparalleled solutions are backed by our support no matter what issue arises. We are your source for the best gratings. If you would like to learn more about our company then please give us a call today!
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We are the experts at creating high quality gratings. Our engineers are eager to handle any of your requests. We care about your order, no matter how big or small. You can count on friendly assistance from the first call. We pay attention to your specific requirements and you are guaranteed to receive your products on-time. These items are easy to install and simple to maintain.
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Our seasoned engineers are experts at manufacturing durable gratings. These high quality solutions are specialized for a variety of industries. We take pride in saying that all of our manufacturing processes happen right here in the United States. We promise to assist you with all of your needs. You will be satisfied with our long-lasting economical solutions!
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Industry Information


Gratings are a type of covering or frame that features a textured surface created by holes, openings or a grid pattern formed by bars. They are used in a wide variety of industrial and commercial uses including in general buildings, production plants and sidewalks when perforated flooring is needed so that liquids and debris do not collect on the flooring, when solid flooring installation is difficult, and when increased traction and tread are needed for workplace safety. Aside from walkways, they are used for a number of barriers and building construction materials.

Gratings come in all kinds of configurations and can be made of many different materials. Metal grates, typically aluminum grates, steel grates or stainless steel grates are used for filtration, support or non slip. They are often galvanized gratings, which are coated for protection and to increase a material's corrosion resistance. Aluminum grating and stainless steel grating are often used to manufacture metal grates requiring high strength materials. Floor gratings, drain grates and architectural grates are mainly made out of metal, fiberglass and plastic. Plastic grating or fiberglass grating is used as an alternative to metal grating because it is lighter, easy to install, slip-free, doesn't rust and remains fire retardant. Fiberglass grating is the most common form of plastic grating because it offers higher strength due to the addition of glass fibers. In bar grating, bars of metal or fiberglass are welded together in a rectangular configuration or grid pattern. It is the strongest type of floor grating, often used as the support flooring itself. Stair treads are used with stairs and ladders requiring a non-slip surface and so are made with serrated teeth, a grid pattern or textured surface for increased safety.

Manufacturers produce gratings of various materials, thicknesses and patterns. Most gratings are made of metals or fiberglass reinforced plastic. Metal grates are the most common, and are usually made with stainless steel or iron and sometimes aluminum, for lighter traffic and lighter load situations. Metal grates are either expanded metal, which are sheets of metal that have been slit and expanded to the desired dimensions. The process of metal plate expansion generates minimal waste and so is a popular manufacturing choice. Metal grates are also constructed from perforated metal, which contain hole patterns created by punching presses. Both types result in a sheet of metal with cut-out openings. Galvanized gratings are hot-dipped in a layer of zinc oxide, which protects the metal from elements that lead to corrosion, oxidation, weakening and an overall shorter life span. Plastic grating is almost always made with fiberglass for greater temperature resistance and strength. The plastic resin provides high corrosion resistance, and is used to produce floors, stairs and enclosures. Depending on the corrosive nature of the building's environment and the needed load strength, floor gratings are manufactured in various thicknesses, dimensions and grip patterns. Both perforated and expanded metal fabrication techniques are used to create the majority of floor gratings. The available patterns of openings in floor gratings vary from diamond shape to oval, and each pattern has different inherent strength properties. The choice of pattern of floor gratings is both practical and aesthetic, as some grates are used for architectural purposes. However, structural soundness and practicality are most important as the percent of open area is related to the amount of light, water, air and sound that is able to pass through the grating. The most heavy duty floor gratings are those made out of welded or pressure-locked interlocking bars. These fiberglass or metal bars provide a stable floor structure that is less likely to bend or warp with extended use.

Known for strength, bar gratings are most often made of metal as it is able to withstand higher traffic and impact than fiberglass or plastic. A series of parallel and perpendicular bars are welded, swaged or riveted together depending on the application and required surface finish. Each bearing bar is welded with each cross bar so they fuse and form a permanent joint. This ensures a high degree of rigidity for the production of walkways, platforms, safety barriers and trench grates. Stair treads are usually metal that has been perforated or expanded. The cut-out holes deter slipping and buildup or water, mud or other materials. They may be the stairs themselves, ladders or covers for a flight of stairs. Finally, trench grates, which are long and narrow bar grating drain covers that allow pedestrians to walk over them, are popular grating products found all over on city streets and sidewalks. They accommodate drainage, deter buildup of water, come in many styles and designs, and may merely sit on top of the drain or be bolted down.

Floor grating manufacturers fabricate products that are most often used for the implementation of increased traction and tread for workplace safety. Often, floor gratings are required by regulation standards in certain areas of a factory or warehouse, including areas near potential fluid or lubrication leaks or as part of stairs and high walkways. These floor gratings provide slip resistant areas and extra grip for vehicles such as forklifts and other machinery and equipment. Another common use for floor gratings is to cover a floor area that needs adequate drainage of fluids as in the case of an industrial-sized refrigerator or freezer. Sometimes the floor gratings are used as part of a building ventilation system, providing free movement of air around the gratings and allowing it to travel through the building. Grates are also used for many other things besides flooring in building construction, including louvers, decorative and ornamental screens, fencing, hand rails and walkways and are mostly used for sunshade and separations that still have air flow, in pedestrian walkways to cover narrow sewers and drains so they may be easily walked over. Gratings are important components of construction and industry and should be carefully incorporated into a building system.
Gratings Manufacturers
Gratings Manufacturers
Gratings - Ohio Gratings, Inc.
Gratings Manufacturers - Ohio Gratings, Inc.
Gratings Manufacturers - SlipNOT Metal Safety Flooring
Gratings Manufacturers
Gratings Manufacturers
Gratings Manufacturers - SlipNOT Metal Safety Flooring
Gratings Manufacturers - SlipNOT Metal Safety Flooring
Gratings - SlipNOT Metal Safety Flooring

  • Architectural grates is a metal or fiberglass reinforced plastic lattice incorporated in building design for a number of functional and aesthetic purposes.
  • Aluminum grating is a framework made using alloyed aluminum bars, sheets and meshes to create a porous grid that may be used for a variety of industrial, commercial and domestic purposes.Aluminum is a popular grate material as it has excellent corrosion resistance under a variety of service conditions, light mass and high strength-to-weight ratio.
  • Bar gratings are floor gratings that are made with thicker metal or fiberglass bars, which are either welded, pressure locked or riveted together. They are used for stronger support purposes, such as stair treads.
  • Covered grating is a durable, molded fiberglass floor product combining slip resistant floor plates and molded grating.
  • Drain grates are an essential component of drainage systems which allow the passage of fluids while capturing debris which may clog or otherwise damage piping.
  • Expanded metal grating is lightweight, durable and inexpensive, provides some traction and does not need special equipment to be installed. The openings range from 3/16" to 2".
  • Fiberglass gratings have lightweight durability and an anti-corrosive nature. Pultruded fiberglass has a higher load capacity than standard molded fiberglass.
  • Floor gratings encompass a wide variety of grates used for flooring or as supplements to improve flooring characteristics such as grip.
  • Galvanized gratings are zinc coated in order to improve strength and corrosion resistance in industrial, commercial and domestic applications where grates are exposed to corrosive materials or are in high use.
  • Metal grates are the norm in the floor grating world. The metals used most often are stainless steel and iron, but aluminum is sometimes used in lighter traffic and load situations.
  • Perforated metal is a type of metal fabrication technique which punches holes of various sizes and patterns via a punching press. This type of metal is often used along with expanded metal to create floor gratings.
  • Plastic grating is never 100% plastic but is often reinforced with fiberglass.
  • Pressure locked grating offers the widest variety of load bearing bar spacing and can be manufactured efficiently in small quantities. Pressure locked grating is one of the most versatile types of grating.
  • Stainless steel grates are made using alloyed steel bars, sheets and meshes to create a porous grid that will not rust, corrode or stain easily and may therefore be used in harsh environments and applications involving volatile fluids and gases.
  • Stair treads have perforations and textured surfaces to prevent slipping and related accidents.
  • Steel grates consist of many parallel and perpendicular steel bars that can bear weight, but still allow air to pass.
  • Welded grating is formed by electrically fusing cross bars to steel load bearing bars.

Anchor - The device by which grating is attached to its supports.
Bearing Bars - Load-carrying bars made from steel strip or slit sheets or from rolled or extruded aluminum and extending in the direction of the grating span.
Bond -The intersection of two strands in a grating pattern.
Carriers - Flats or angles which are welded to the grating panel and nosing of a stair tread.

Cross Bars - The connecting bars that extend perpendicularly across the bearing bars. Where cross bars intersect the bearing bars, they are welded, forged or mechanically locked to the bearing bars.

Cutout - A section of grating that has been removed to allow pipes, ducts, columns, etc. to pass through the grating.

Grating - An open grid assembly of metal bars, in which the bearing bars running in one direction are spaced by rigid attachment to cross bars running perpendicular to them or by bent connecting bars extending between them.

Grating Frame - A metal frame that contains floor grating and provides a means to anchor floor construction.

Grating Tread - The surface of a step constructed of a type of grating.

Hinged Panels - Grating panels which are hinged to their supports or to other grating parts.

Kick Plate - A flat bar attached flat against the outer edge of a grating and projecting above the top surface of the grating to form a lip or curb.

Nosing - A special L-section member serving as the front or leading edge of a stair tread or of grating at the end of a stair.

Reticuline Bar - A sinuously bent connecting bar extending between two adjacent bearing bars, alternately contacting and being riveted to each.

Rivet Centers - The distance center to center of rivets along one bearing bars.

Reversible Grating - Grating so constructed that it may be installed either side up.

Span of Grating - The distance between two points of grating support.

Straight Cut - That portion of the cut edge or cutout of a grating which follows a straight line.

Trim Band - A band that is not load-carrying but primarily used for aesthetic purposes.

Width - The overall dimension of a grating panel, measured perpendicular to the bearing bars.

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