You won't regret investing in a Premier Portable Building through RGK. 100% custom designed by you, for you. Proudly made in America you won't ever sacrifice quality with our premium portable building. Planning your perfect building is simple, straightforward, and leaves nothing to the imagination with the online digital design tool. Buildings our designed through Premier Buildings and materials are delivered to RGK Portable to build and deliver your building. RGK then stick builds your custom building in West Union, Iowa and delivers straight to your location.