Factory Sectional Door Projects 22 Sectional Doors for an Automotive Parts Plant China Project reference: 22 Sectional Doors for an Automotive Parts Plant. Customer Challenge An automotive supplier needed 22 doors for press and assembly halls with heavy forklift traffic and an east facade exposed to strong wind. Our Solution We supplied steel sectional doors with 80 mm panels, 1800 Pa wind reinforcement and safety edges, phased installation over two production breaks. Results The doors have operated through two typhoon seasons without panel deformation or track damage.