VFP modified Iso Containers are available from 8 ft. x 10 ft. (2.4m x 3m) to 8 ft. x 53 ft. (2.4 m x 16.1 m). Containers designed to be joined on-site are available for multiple module configurations when your project requires additional square footage. Feel free to about our Modified Iso Containers. Or, enter your specifications on our page.. The typical interior finish is foam-in-place insulation (R value specified by customer) and white laminate interior sheathing. Various interior finishes are available to meet sound attenuation, aesthetic, or other requirements..