Warehouse Overhead Door Projects Overhead Doors for a 3PL Warehouse China Project reference: Overhead Doors for a 3PL Warehouse by ABX Industrial Overhead Door. Customer Challenge A 3PL operator needed durable doors for 30 mixed-traffic docks. Our Solution We supplied high lift sectional doors with impact-resistant bottom rails and traffic lights. Results Door-related dock downtime fell and the operator standardized this spec for new sites.