A metal or steel grate secures an entrance or a location while still allowing for visibility and ventilation. Metal grating is usually used in industrial buildings; most commonly installed in factories to seal off entrances. In many cases, metal grating is required by local building codes. Other than that, grates also can be used for supporting the weight of people and equipment while limiting the flow of unwanted items. Grates allow air to be vented up through a floor, gasses to vent outside, or grease and liquids to drain away. Grates can be used in grills or ovens, holding up the material to be heated while permitting heat to rise and ash or grease to drip down.
Standard sizes of steel grating in the United States are set in inches and fractions of an inch. If you want to make sure the steel grating manufacturers you are looking for are trustworthy, you can contact local government to ask for assistance. Gratings are made from metal bars that cross each other or metal bars with filler strips welded to the metal bars. Metal grating can be assembled with cross-pieces fitted into joints of the other members or welded together at the intersections. The outer edge of the grate is enclosed by a metal frame. Bearing bars are the stronger bars used in the grating. They cover the entire span or length of the grate. Filler strip or cross-bars range from equal size to much smaller than the bearing bars.