Using A foldable container as a Prefabricated Building for temporary site office/accommodation has a huge advantage of convenience and space saving. Compared with normal site office construction, there is cost saving for time, labor, transportation and warehousing convenience. The foldable container is movable with crane or forklift hence better accessibility. Installation and dismantling is also very fast and can be constructed within 25 minuets. The insulation material use to construct the container also provide good sound and heat insulation.