Metal Grate Manufacturers and Suppliers

IQS Directory provides an extensive list of metal grate manufacturers and suppliers. Utilize our website to review and source metal grate manufactures with our easy-to-use features which allow you to locate metal grate companies that will design, engineer, and manufacture metal grates for your exact specifications. Our request for quote forms make it easy to connect with leading metal grate manufacturers. View company profiles, website links, locations, phone number, product videos, customer reviews, product specific news articles and other production information. We are a leading manufacturer directory who will connect you with the right manufacturers whether you are looking for metal floor grates, metal drain grates, or metal grate covers.

  • Canton, OH 800-321-9800

    For over 40 years, Ohio has been a leading manufacturer of precision made aluminum grating solutions and offers products in both light duty for pedestrian loading and heavy duty for H20 loading to meet AASHTO standards. Ohio’s products can be manufactured to comply with ADA requirements, are manufactured in the USA and can assist with earning LEED credits. Please call Ohio today!

  • Mobile, AL 800-226-1134

    All Plastics and Fiberglass prefabricates gratings products including fiberglass gratings, bar gratings and floor gratings. We offer online ordering of our in-stock products to accommodate all our current and potential customers. Allow our very capable engineers and technicians at All Plastics and Fiberglass to come up with a custom solution perfectly suited to fit your needs.

  • Dallas, TX 214-630-0033

    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.

  • Houston, TX 800-495-5997

    As leaders in the FRP industry, we are dedicated to customer service and support of all industries through continuous improvements in engineering and product development. Our line of products include vortex-induced vibration suppression products, fiberglass structural floor gratings, and more. Contact our team today to learn what we can do for your business.

  • Oklahoma City, OK 800-654-4568

    Expanded Solutions puts more than 50 years of experience to work for your requirements in high quality expanded metals, security mesh, mini-mesh & expanded grating. Along with our large mesh capabilities, we have been an innovator in small-mesh products too. For a diversity of options please call today! We continue the tradition of excellence every day by offering quality service & products.

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businessIndustry Information

Metal Grates

Metal grates, or metal gratings, are essentially any collection of parallel, identical (or nearly identical), evenly spaced and elongated elements, typically grids, plates or bars. Most often, metal gratings are made up of just one set of elongated elements, but they can also be composed of two sets of elements. In the case of the latter, the second pair is typically perpendicular to their first pair. When they are perpendicular like this, the grates may also be known as mesh or grids. Metal grates are usually made from metal materials such as steel, stainless steel or aluminum. It is true that both plastic and fiberglass are also frequent choices in grating construction. However, neither plastic grating nor fiberglass grating wield the great strength of metal grating, nor can they match its load bearing qualities. Such load bearing qualities are important to many of the applications of metal grates, which are used to provide a protective filter or grid, a semi-permeable surface or structural support to stairs, floors, enclosures and various filter systems. Some of the roles they serve include stints as storm drain covers, air vent covers and sewer covers. In addition, metal grates are installed on factory floors that need a non-slip surface, on factory and warehouse floors that require the floor remain clear of liquids and debris and on outdoor stairs and ramps. Metal grates can as be used to protective heaters or other machinery by serving as a protective wall.

In addition to their strength and load bear capabilities, metal grates are often superior to plastic grates and other non-metallic grates because the metallic materials from which they are built exhibit beneficial qualities of including electrical conductivity, thermal conductivity, ductility and malleability. Such qualities render them well-equipped to handle applications in industries such as: architecture, chemical processing, food processing, marine, oil rigging, paper milling and wastewater treatment. Stainless steel grates in particular are extremely popular for use in environments where they will likely be exposed to corrosive elements. This is due to the fact that they exhibit the characteristic of superior corrosion resistance.

Metal grates are fabricated into two main metal grate types, which are bar grating and expanded metal grating. The first type, bar grating, is made from thick metal bars. (Non-metal bar grating is usually made from fiberglass bars.) To form metal bar grates into their common spacing configurations, manufacturers may employ a few different metalworking processes, including riveting, swaging, pressure-locking or welding. The first method, riveting, is either done manually or done by a riveting machine, the latter which automatically squeezes rivets, a type of permanent mechanical fastener, into the workpiece. Next, swaging is a cold working process that involves changing the dimensions of a workpiece by forcing it through a die. The pressure-locking, or bonding, of metal grate bars is achieved by placing extreme amounts of hydraulic pressure onto them, typically two at a time. Finally, welding is common process used to make metal bar grates. It works by heating two ends of two separate pieces until they melt, and then fusing them together. Bar grating is most often configured rectangularly or rectangularly with reinforced diagonal bars. Note that the reinforcement of diagonal bars effectively turns a rectangular configuration into a diamond configuration composed of triangle shaped spaces that face one another.

Expanded metal grating, unlike metal bar grating, is typically formed from a solid metal plate using only one process. It works by taking this solid metal plate, perforating it and stretching it. By stretching the metal plate like this, manufacturers impart the finished product with superior structural strength and a greater strength-to-weight ratio than solid metal. It will not unravel, nor will it come apart at the joints. In addition, the process creates much less waste than most metal fabricating processes. Most often, expanded metal grating is formed into a diamond configuration, but it may be made into a different configuration if an application calls for it. This configuration allows light, liquid and air to pass through the grating, as the fabrication method allows the grating to remain solid enough to work as a barricade or floor.

Metal grates are a fantastic investment. They help facilitate the clean and uncluttered floors needed to keep workers safe and efficiency flowing in factory environments; they keep the streets and sidewalks free from irritating or dangerous amounts of rain accumulation and they provide all kinds of needed filtering services. Find out more about the value-adding capabilities of metal grates and how they might serve you by contacting one of the many talented grate manufacturers listed on our website.

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