They're virtually maintenance free, in either free-standing or space-saver units, and built to protect with tight exterior construction, protective flooring, and easy-access, locking doors. They’re lightweight and easy to set up and are resistant to most weather conditions with built-in flooring and tie-downs. Collapse and stow away until needed. Vinyl crafting is updated for extended wear and usability. A great advantage of vinyl construction is its stain repellent properties.