UL 9540 and UL 9540A are “observation expectations determined by putting the engineering into failure mode … not an acknowledgement of safety [but instead] what you are able to do in order to avoid burning everything down,” he said. Weight Capacity: one hundred kilos for every linear foot (ventilated shelf) https://attic-storage-lift-soluti64208.salesmanwiki.com/9497497/not_known_details_about_garage_attic_lifts