If you need to install drywall overhead for ceilings, this3 ft to 11 ft Adjustable Height Board Jackis for you This tool makes it easy and only requires one operator The3 ft to 11 ft Adjustable Height Board Jackhas a 36 in loading height and extends to 11 ft ceilings The load limit of 150 lbs ensures it will easily lift the largest drywall sheet Sloping ceilings are no problem for this jack it tilts easily to hang drywall at an angle