I've never posted here before but many have helped give me ideas. I just completed the installation of my Atlas PVL10 lift. My shop is a 3 bay shop with the center bay having 20' ceilings but I park my 5th wheel in there. The other 2 side bays only have 135" ceilings. I had to redo the ceiling between two trusses (I didn't modify the trusses), boxed it out for a 148" height. The safety shutoff bar is just lower than the ceiling and works perfect. I didn't modify the lift at all. I added a shut off switch right at the power unit.