United Rentals offers a comprehensive selection of modular buildings for sale for use in various commercial applications, including retail, construction, healthcare and more. These used modular buildings for sale are composed of several sections called modules, which makes the installations simple to construct and take apart. Our inventory of used portable buildings for sale features structures of different sizes and uses. Additionally, our fleet of modular buildings can be used for temporary housing, classroom space, restaurants, office space and more. United Rentals’ lineup is diverse and versatile so you can find the ideal modular building for sale for your needs.