UNIRAC designed U-LA's to support a wider range of site and climactic challenges than any other PV structure on the market. U-LA aluminum or steel components merge with SolarMount rails and installer-supplied steel pipe to form durable, rigid truss structures. U-LA aluminum or steel components are used to combine installer-supplied Schedule 40 or 80 steel pipe (available anywhere) to create a durable structure that can accommodate uneven, rocky, sloping terrain or heavy coastal winds.