Whether your trailer is 8′ or 8’6″ wide, the Kelley DSSL dock seal provides full-width access to the vehicle when docked at doors up to 9′ high. These extremely versatile dock door seals feature a compression foam head pad with L-shaped side pads and roll-formed galvanized steel framing. The side pads are equipped with triangular-shaped foam wedges that support the L-shape.