Maryland Modular Design Inc 10300 Harford Rd Glen Arm, MD 21057 Phone : (410) 668-7989 Maryland Modular Design Inc Business Category Building Materials Home Builders General Contractors-Residential Buildings Modular & Mobile Homes Sales & Service Maryland Modular Design, Inc. P.o. Box 28321 Baltimore, MD 21234 Phone : (410) 668-7989 Maryland Modular Design, Inc. Business Category Building Materials Builders & Contractors Home Builders Prefabricated Buildings Mobile Homes-Dealers General Contractors-Residential Buildings Buildings-Pre-Cut Prefabricated-Whol Modular & Mobile Homes Sales & Service Modular Homes Buildings & Offices Fax           (410) 668-7629 Services           Build-outs, Commercial, Commercial Insurance, Concrete Work, Construction Managers, Design/Build Property Type           Residential