For more than 25 years PortaFab has designed and manufactured exceptional pre-engineered modular building systems that solve in-plant space issues. When unexpected changes in business create new demands for in-plant space utilization, modular buildings give you unlimited flexibility in responding quickly - and for much less cost than possible with buildings made from conventional construction. Modular buildings can be accessorized to fit virtually every need--including sound, thermal and fire insulation; unique electrical and lighting specifications; and aesthetic requirements. PortaFab modular buildings feature nonprogressive construction. Interchangeable wall panels, door and window panels let you make changes quickly without disturbing adjacent panels or the ceiling.