IDI turnover doors are an excellent choice for industrial door openings where headroom limitations will not allow for the installation of a standard vertical lift door. The IDI turnover door is manufactured to our exacting standards and will serve you and your customer for many years with minimal maintenance. 14-gauge exterior/16-gauge interior steel cladding No sliding contact Meets all wind-loading requirements Requires only 2' of headroom Self-supporting horizontal tracks require no ceiling/roof loadMaintenance Maintenance free hardware with factory sealed ball bearing rollers Shop-primed exposed and concealed surfaces Delivers long service life with minimum maintenance