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If you want to learn more, please visit our website galvanized steel grating.

 – A device by which grating is attached to its supports

Band

 – A flat bar welded to the end of a grating panel, or along the side of a cutout, and extending neither above nor below the bearing bars.

Load Carrying Band

 – A band used to transfer load between bearing bars.

Trim Band

 – A band which carries no load, used primarily for appearance and closing open ends.

Bearing Bars

 – Load-carrying main elements made from steel, aluminum or stainless steel, extending in the direction of the grating span

Bearing Bar Centers

 – The distance center-to-center of the bearing bars.

Carriers

 – Flats or angles which are welded to the grating panel and nosing of a stair tread and are bolted to a stair stringer to support the tread.

Clear Opening

 – The distance between faces of bearing bars in rectangular gratings, or between a bent connecting bar and a bearing bar in a riveted grating.

Cross Bars

 – The connecting bars which extend across the bearing bars, usually perpendicular to them. The may be bent into a corrugated or sinuous pattern and, where they intersect the bearing bars, are welded, forged or mechanically locked to them.

Pressure-Locked Grating

-Pressure-locked means bearing bars are locked in position by cross bar deformation instead of riveting or welding. Several proven methods include:
•   Expansion of an extruded or drawn tubular   cross bar;
•   Extruded cross bar deformed or swaged between bearing bars;
•   Press assembly of rectangular cross bars into slotted bearing bars.

Radially Cut Grating

 – Rectangular grating which is cut into panels shaped as annular segments, for use in circular or annular areas.

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 bar.

Riveted Grating

 – Grating composed of straight bearing bars and bent connecting bars, which are joined at their contact points, by riveting.

Contact us to discuss your requirements of Electro galvanized welded wire mesh. Our experienced sales team can help you identify the options that best suit your needs.

Serrated Grating

 – Grating which has the top surfaces of the bearing bars or cross bars, or both, notched.

Cross Bar Centers

 – The distance center-to-center of the cross bars.

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Brief Introduction to Metal Gratings, Categories & Specifications

Metal grating is collectively referred to a wide range of fabricated metal products that have essentially identical, parallel or elongated regular spacing. It is strong and durable with an exceptional strength-to-weight ratio and can be easily fabricated to nearly any configuration. It is widely used in various industrial and commercial applications and serves as platforms, walkways, ceilings, floors, stair treads, trench covers and sun shades in factories, building decorations and municipal works.

According to its manufacturing process, metal gratings are divided into two main categories: bar gratings and safety gratings.

Bar grating

Safety grating

Bar Grating

Bar grating, also known as steel grating, is generally made up of parallel cross bars that are connected together with perpendicular bearing bars. As these bars are commonly connected through welding, press-locking or swage-locking, therefore, our bar gratings are divided into welded steel grating, press-locked steel grating and swage-locked grating.

Welded Steel Grating

Welded steel grating is the most popular and versatile of all the industrial grating types. It consists of bearing bars that are automatically resistance-welded with the cross bars via precise use of intense heat and pressure. This produces a rugged, one-piece panel with cross bars that are extremely rigid, yet smooth enough for easy, safe walking. Both plain and serrated surfaces are available. It is widely used as walkways, safety barriers, drainage covers, platforms, ventilation grates and stair treads.

Specification

19-W-2, 19-W-4, 15-W-2, 15-W-4, 11-W-2 and 11-W-4 are commonly used industrial grating sizes. Of which, for example, 19-W-4, W stands for welded steel gratings. 19 represents the spacing between bearing bars is 1-3/16 "on center while 4 means the spacing between cross bars is 4" on center. Other sizes are much similar to 19-W-4.

Press-Locked Steel Grating

Instead of welding the joints together, press-locked steel grating relies on employing enormous hydraulic pressure that fuses the two close-tolerance slotted bars together. Permanent locking is achieved by forcing the deep cross bar into the notched bearing bar. Both plain and serrated surfaces are available. It is widely used for ceilings, platforms, floors, fences and all kinds of covers in the factories, civil and commercial buildings.

Specification

19-P-2, 19-P-4, 15-P-2, 15-P-4, 11-P-2 and 11-P-4 are commonly used industrial grating sizes. Of which, for example, 19-P-4, P stands for press-locked steel gratings. 19 represents the spacing between bearing bars is 1-3/16 "on center while 4 means the spacing between cross bars is 4" on center. Other sizes are much similar to 19-P-4.

Swage-Locked Grating

Swage-locked grating, also known as aluminum grating, is mainly made of aluminum bars and manufactured by inserting cross bars into pre-punched holes in the bearing bars. The cross bars are then swaged forming a positive mechanical connection. The cross bars are recessed below the top surface of the bearing bars providing a uniform and attractive architectural appearance. It is mainly used for platform ceilings and outdoor curtain walls.

Specification

19-SG-2, 19-SG-4, 15-SG-2, 15-SG-4, 11-SG-2 and 11-SG-4 are commonly used industrial grating sizes. Of which, for example, 19-SG-4, S stands for swage-locked steel gratings. 19 represents the spacing between bearing bars is 1-3/16 "on center while 4 means the spacing between cross bars is 4" on center. Other sizes are much similar to 19-SG-4.

Safety Grating

Safety grating is a type of metal grating that is widely used as walking surfaces to improve traction and reduce the risk of slips and falls. It is generally made from metal sheet that is perforated or cold stamped in a variety of patterns. According to its patterns, our safety gratings are divided into diamond-strut safety grating, O-grip safety grating and traction-grip safety grating.

Diamond-Strut Safety Grating

Swage-locked grating, also known as aluminum grating, is mainly made of aluminum bars and manufactured by inserting cross bars into pre-punched holes in the bearing bars. The cross bars are then swaged forming a positive mechanical connection. The cross bars are recessed below the top surface of the bearing bars providing a uniform and attractive architectural appearance. It is mainly used for platform ceilings and outdoor curtain walls.

Specification

• Total length: 6000 mm.
• Total width: 120 mm, 180 mm, 240 mm, 300 mm, 360 mm, 420 mm, 480 mm.
• Total height: 40 mm, 50 mm, 75 mm.
• Thickness: 1.5 mm, 2 mm, 2.5 mm.
• Width of the protruding section: 15 mm.
• Height of the protruding section: 10 mm.
• Spacing between the protruding sections: 30 mm.

O-Grip Safety Grating

O-grip safety grating is made of carbon steel, aluminum and stainless steel and produced by cold processing. Its large debossed holes and perforated buttons help provide maximum slip protection and performance under practically all conditions and in every direction. It prevents rain, snow and dust from accumulating and is widely used as walkways, floors, slopes, stair treads, fashion shows and working platforms in commercial and industrial applications.

Specification

• Length: 4000 mm.
• Width: 150 mm, 200 mm, 250 mm, 300 mm.
• Height: 40 mm, 50 mm, 75 mm.
• Thickness: 1.5 mm, 2.0 mm, 2.5 mm.

Traction-Grip Safety Grating

Traction-grip safety grating is generally made of is made of carbon steel, aluminum and stainless steel and produced by cold-shaped. It features a surface with hundreds of perforated buttons that provide slip-resistance in all directions making it a practical choice for industrial applications. It is widely used as walkways, floors, stair treads, and working platforms in commercial and industrial applications.

Specification

For more 2x2" galvanized welded wire mesh rollinformation, please contact us. We will provide professional answers.

• Length: 6000 mm.
• Width: 150 mm, 200 mm, 250 mm, 300 mm, 350 mm, 400 mm.
• Height: 40 mm, 50 mm, 75 mm.
• Thickness: 1.5 mm, 2.0 mm, 2.5 mm.