This is a single wall lid with an arched rib profile and a higher hinge line (2.5″) used in the Southern regions. This strong design, complete with bend inducer / crumple zone performs well in extreme heat.

37″ X 39″ (39″ length is measured from the center of the hinge line to the end of the front lip) front load lid is a single wall product designed with a high 2.5″ hinge line, arched rib profile and bend inducer / crumple zone will perform very well in extreme heat (Southern US regions).