This large group grill features 2 separate cooking grates that allows the user to cook different foods at the same time. The bbq grates are adjustable to 4 levels and made with 1/2" steel bars welded on 1" centers. Each grill measures 14" x 36" giving you a total of 1008 sq. in. of cooking surface. This model also features a 10" x 28" x 3/16" utility shelf that provides a convenient work space for the chef. The 36" W x 28" D x 10" H fire box is made of 3/16" thick steel that features a formed ash lip to prevent hot coals and ash from falling out. The fire box is strengthened on the bottom with supporting gussets and mounts on a single 6 inch square steel pedestal with a 12" x 12" x 3/8" base mounting plate (4 1/2" x 6" anchor bolts are furnished.) This commercial park group barbecue grill is finished in heat resistant black enamel that is non toxic.