Tri-State Overhead Door & Gate offers a wide range of products and services when it comes to loading dock equipment. Having dock equipment that is efficient and properly working is a good way to keep your business running smooth, efficient and safe. Tri-State has the hands-on experience and the equipment to ensure properly working dock equipment to help keep your business running at peak efficiency. Tri-State Overhead Door & Gate offers sales, installation, service, and emergency service when it comes to dock equipment.