The Amerimax 3/4” x 49”x 121" Aluminum Swing Door Panel Blank keeps you Ready for the Road Ahead being both durable and reliable. This swing door panel blank is designed to withstand the most demanding environments in the heavy duty trucking industry. As a result, this heavy duty swing door panel blank is a high-quality replacement for any damaged or worn trailer swing door. FleetPride is your First Click in Heavy Duty .