Swage Locked Rectangular Bar Grating is the most widely used pressure lock type of aluminum grating. The bearing bars are available in 7 different depths ranging from 1" to 2-1/2". Swage locked rectangular bar grating is offered in either 1-3/16" (19-spacing) or 15/16" (15-spacing). 

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The rectangular bearing bars are available as a solid plain rectangular bar or can be serrated on the top surface for slip resistance (shown in the image).