4D Building, Inc dba McDonald Modular Solutions, Inc. headquartered in Milford, Michigan, is a major supplier of commercial, institutional and industrial modular buildings both temporary and permanent as well as commercial container storage. We are a Founding Member of the Modular Building Institute, and a member of the Modular Building Group, an affiliate of modular companies serving clients nationwide. Each unique, yet working together to provide fast, flexible and competitive solutions to their customers. Committed to professionalism, quality and providing their customers the information that they need to make sound modular building decisions. Our mission is to continuously improve the quality of our products, processes and services based on our customers’ needs. Our goal is to be recognized as the best supplier of modular space. Markets Served: Healthcare, Education, Retail, Medical and Industrial.