Rumble Grate LLC. is a manufacturing company which builds (the Grizzly Rumble Grate) trackout control equipment to minimize dust, dirt and rock from being tracked out from unpaved roads on to paved roads. The overall focus is to keep dust, dirt and rock off paved roadways. Trackout is the only company with patented (4 patents) and trade marked trackout equipment. We provide trackout control equipment to construction sites, landfills, power plants, railraod operations and salvage yards. Any other trackout equipment manufacturing companies are attempting to duplicate and label their equipment to copy and mimick out patented products.