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Dean Lumber of Southern Maryland

Dean Lumber & Supply Company, Inc., has been supplying Southern Maryland with top building supplies for over 80 years. Dean Lumber of Southern Maryland is dedicated to providing our customers with exemplary services and the highest quality products, products like: Garage Doors and cabinets, Millwork, Woodwork, Insulation, Spray Foam, Closets, Shower Doors, Mirrors, Locksets, Wood and Gas Fireplaces, Mantles, Surrounds, Countertops, Vanities, Siding, Roofing, and more. We offer these products at competitive prices in an environment based on honesty, integrity and mutual respect, with a strong commitment to continual improvements. Dean Lumber of Southern Maryland has been helping to build Southern Maryland with you and your neighbors for almost a century.

In the late 1920s Mr. Mervell M. Dean began operations in St.Mary’s County of Maryland supplying sawed logs to the commercial projects in the area. Mr. Dean himself built many commercial buildings in St.Mary’s County and eventually began single family home construction. This construction fueled the need for a better supply of materials in Southern Maryland. Fulton Lewis and Mervell Dean
Frank Dean with Betty In 1933 Dean Lumber & Supply Company, Inc. began business supplying materials to the contractor trade in and around St. Mary’s County. In the coming years Mr. Frank Dean would join the business and run it for over fifty years serving the community. In 1985 Dean’s built a new 24,000 square foot professional / retail facility and currently operates a custom millwork shop out of its original location.
Frank Dean with Betty Now this building houses our Fabrication and Millwork Center, known as DLC Fabricators and Installers.

This is where we make the cabinets, countertops, mouldings, bookcases and more for Dean Lumber of Southern Maryland.

Since our inception Dean Lumber & Supply Company recognizes the most valuable resources to any business are customers and employees. We have been very fortunate to have the best that Southern Maryland offers. Frank Dean with Betty
Frank Dean with Betty Dean Lumber & Supply Company, Inc. is far more than just a lumber yard. While Dean Lumber of Southern Maryland does offer all the products of a professional yard we have over 15,000 square feet of showroom. On display are interior and exterior doors and windows, sidings including vinyl, wood and fiber cement, roofing, stairs and railings, columns and exterior railings, kitchen and bath centers, garage doors and insulation, gas fireplaces and mantles. All of the products on display are available installed through a network of our professional contractors and our employees.






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Located in the heart of Southern Maryland, Dean Lumber offers an almost endless supply of your home building or remodeling needs. Whether it is garage doors or cabinets, millwork, insulation, spray foam, shower doors, mirrors, locksets, surrounds, countertops, vanities, siding or more, Dean Lumber has you covered.

Not only does Dean Lumber carry all these fine products for your home remodeling projects, these products are from the top manufacturers, companies like: Anderson, Fiberon, Therma Tru, Simonton, Formica, Corian, Heatilator, Kraftmaid, GAF, Trex, Azek, Hurd, Amarr, Raynor, Certainteed, Hardi, and many more.

Dean Lumber understands what folks in Southern Maryland are looking for, whether a Kitchen & Bath project, or if you're looking for replacement windows, need new shingles, cabinets, lumber, or any other building products, we have it.

Dean Lumber has been serving Southern Maryland since 1920, that is 90 years of working with you and your neighbors in St. Mary's, Charles, Calvert, Anne Arundel, Prince Georges, King George, Hollywood, Lexington Park, California, Leonardtown, Great Mills, Mechanicsville, Hughesville, Charlotte Hall, Waldorf, Solomon's, Lusby, St. Leonard, Prince Fredrick, Dunkirk, Annapolis, Edgewater, White Plains, La Plata, Dahlgren, and neighboring Virginia.