1. Manufacture Aluminium gratings are manufactured by a high-power pressing process in which all joints are made without welding. The finished panels can be cut to size at any point without impairing the strength and rigidity. The I-Bar design takes advantage of the aluminum extrusion process by placing the metal where it is most effective, at the outermost fiber while reducing the thickness of the neutral axis web. This design consideration allows the same load carrying capacity at less weight per square foot than rectangular bar therefore resulting in a cost savings. 2. Product Code ExampleI-Bar aluminium gratings can be manufactured with a variety of bearing bars. The main specifications are listed below.

Rectangular Bar	Bearing Bar Spacing	Cross Bar Spacing	Bearing Bar Size
19-SGI-4	1-3/16”	4”	1”x1/4”,1-1/4”x1/4”, 1-1/4”X3/8”, 1-1/2”x1/4”, 1-3/4”x1/4”, 2”x1/4”…….
19-SGI-2	1-3/16”	2”
15-SGI-4	15/16”	4”
15-SGI-2	15/16”	2”
11-SGI-4	11/16”	4”
11-SGI-2	11/16”	2”
9-SGI-4	9/16”	4”
9-SGI-2	9/16”	2”
7-SGI-4	7/16”	4”
7-SGI-2	7/16”	2”

1-1/4”X1/4” 19- SGI -4 is the most commonly used specification of I-Bar aluminium grating 3.Feature Light-weight and high strength corrosion-resistant, non-sparking rustproof. Easily recycled versatile 4.Applications walkways platforms Fence Building ceiling Floors Façade 5.Our Services Specification are able to custom based on customer’s requirement. We can provide the 3D or CAD drawings. 6.Packaging & Delivery