When firefighters arrived, flames were coming through the roof of the building, which houses Overhead Door and another company.
Six employees were inside Overhead Door when the fire broke out; all made it out safely, Bassett said. Crews surrounded the burning building and doused it with water, protecting other structures from the fire.
By 10 p.m., the fire was knocked down, Bassett said, adding that crews would remain at the site all night, putting out hot spots.
"The building was a total loss," he said, and likely would need to be completely demolished.
Investigators were searching for the cause of the fire, Bassett said.
In all, 58 firefighters, two ladder trucks, seven engines and an ambulance responded to the fire, Bassett said. Crews from Salt Lake City, Kaysville, Farmington, Layton, Sunset and South Weber fire departments were on the scene. One firefighter suffered a head injury that required stitches during the blaze.