pate® equipment support rails provide leakproof mounting of rooftop units - with no worries about support failure. Load bearing tested and rated, with certified data furnished on request. Internally reinforced. Built to any length and designed to span roof joists. Constructed of heavy-gauge galvanized steel, with continuous welded and mitered corner seams. Integral base plate and galvanized steel counterflashing. Pressure treated wood nailers. Styles and heights to match roof deck and equipment requirements. For your protection, always require certified load bearing data for any equipment supports on your project.