• {{msg}}


  • {{msg}}
Resources FAQs GMS / Parent Company Careers Credit Application Nitroset Fastening Solutions Milwaukee Power Tools DeWalt Power Tools Knauf Kraft Insulation at CBSI Joint Treatment Beads & Trim Sto Products Crane FRP Grabber Rubbermaid Commercial Products Armstrong Axiom Fry Reglet Trim Trimaco Surface Protection SMMA Steel Designations RedHeader PRO system Armstrong SoundScapes Ramset Fasteners Cendrex Access Doors G-P Dens Drywall Products Super Stud Steel Louisville Ladders Armstrong WoodWorks® USG Sheetrock® Tools Marshalltown Tools Hyde Hand Tools DeWalt 60V Max tools USG Sheetrock Joint Compounds Dow Thermax Exterior Insulation National Gypsum eXP Wallboard Armstrong Drywall Grid Systems Makita 18V Power Tools Dow Thermax Sheathing USG UltraLight Drywall ClarkDietrich BlazeFrame DeWalt 20V Max tools FallTech Safety Sto® Tool Delivery Service Ecommerce Impact Delivery & Fleet Knowledgeable Professionals Ordering Specialty Products Safety / Site Reviews Showrooms & Customer Pick-ups Drywall Steel Studs & Tracks Acoustical Ceilings Hand & Power Tools Joint Treatment & Finishes Insulation EIFS & Exterior Finishes Safety Surface Protection Accessories Flooring Lumber Access Doors Firestops FRP Panels Fasteners Fry Reglet 7770 Norfolk Condominiums Delmarva Health and Medical Pavilion Doylestown Assisted Living Light House Christian Church Oxford Square Plantation Lakes by Lennar Homes Ryan Homes Schuyler Crossing Theodore Roosevelt Senior High School Trump International Hotel Wegmans Grocery Store Atlantic City, NJ (Egg Harbor Township) Baltimore, MD (Quad Ave) Baltimore, MD (Whitestone Rd) Beltsville, MD Bladensburg, MD Camden, NJ Dover, DE Elizabeth, NJ Frederick, MD Fredericksburg, VA Gaithersburg, MD Harrisburg, PA Hagerstown, MD Jessup, MD Tool & Fastener Express Manassas Park, VA Marshall, VA New Castle, DE Selbyville, DE Springfield, VA Upper Marlboro, MD Vienna, VA Washington, D.C. Winchester, VA

Capitol Building Materials, Inc. (CBSI) Yards

Construction supplies in Delaware, Maryland, New Jersey, Ohio, Pennsylvania, Virginia and Washington, D.C.

As part of the GMS family of companies, CBSI is a trusted partner of residential and commercial building professionals in DE, MD, NJ, OH, PA, VA and Washington, D.C. We provide expert product and industry knowledge, and exceptional customer service from our local construction yards in:


Dover | New Castle | Selbyville


Baltimore-Quad Ave | Baltimore-Whitestone Rd | Beltsville | Bladensburg | Frederick | Gaithersburg | Hagerstown | Jessup Tool & Fastener Express | Upper Marlboro

New Jersey

Atlantic City | Camden | Elizabeth


Cleveland | Stow


Harrisburg | Meadowlands | Pittsburgh


Manassas Park | Marshall | Springfield | Stafford | Vienna | Winchester

Washington, D.C.

Yards in District of Columbia

Washington, D.C.

2300 T Street NE
Washington, DC 20002
PH: 202-554-9191
Hours: M-F 5AM-4PM
Sat 7AM-12PM

Yards in Delaware

Dover, DE

5119 N. DuPont Hwy.
Dover, DE 19901
PH: 302-678-4601
FX: 302-678-8034
Hours: M-F 6AM-4PM

New Castle, DE

3025 Bowlarama Dr.
New Castle, DE 19720
PH: 302-501-6020
FX: 302-561-9640
Hours: M-F 6:30AM-4PM

Selbyville, DE

36652 DuPont Blvd.
Selbyville, DE 19975
PH: 302-436-8624
FX: 302-436-8631
Hours: M-F 6:30AM-4PM

Yards in Maryland

Baltimore, MD - Quad Ave

6813 Quad Ave.
Baltimore, MD 21237
PH: 410-284-2800
FX: 410-284-2899
Hours: M-F 6AM-4PM
Sat 7AM-12PM

Baltimore, MD - Whitestone Rd

6600 Whitestone Rd.
Baltimore, MD 21207
PH: 410-685-1080
Hours: M-F 6AM-4PM

Beltsville, MD

12340 Conway Rd.
Beltsville, MD 20705
PH: 301-937-6366
FX: 301-937-8710
Hours: M-F 6AM-4PM
Sat 7AM-12PM

Bladensburg, MD

4501 46th St.
Bladensburg, MD 20710
PH: 240-764-1236
FX: 240-764-1235
Hours: M-F 6AM-4PM
Sat 7AM-12PM

Frederick, MD

8006 Reichs Ford Rd.
Frederick, MD 21704
PH: 240-436-3500
Hours: M-F 5AM-4PM

Gaithersburg, MD

7870 Beechcraft Ave.
Gaithersburg, MD 20879
PH: 301-921-9207
FX: 301-927-9446
Hours: M-F 6AM-4PM
Sat 7AM-12PM

Hagerstown, MD

1225 Maryland Ave.
Hagerstown, MD 21740
PH: 301-739-3090
FX: 301-739-1021
Hours: M-F 6AM-4PM
Sat Closed

Jessup, MD Tool & Fastener

8205 Patuxent Range Rd.
Jessup, MD 20794
PH: 443-620-0326
Hours: M-F 6AM-4PM

Upper Marlboro, MD

7811 Penn-Western Ct.
Upper Marlboro, MD 20772
PH: 240-455-0319
Hours: M-F 6AM-4PM
Sat 7AM-12PM

Yards in New Jersey

Atlantic City, NJ

3173 Fire Rd.
Egg Harbor Township, NJ 08234
PH: 609-646-9350
Hours: M-F 7AM-4PM

Camden, NJ

201 Erie St.
Camden, NJ 08102
PH: 856-576-6964
FX: 856-576-6971
Hours: M-F 7AM-4PM

Elizabeth, NJ

850 Flora St.
Elizabeth, NJ 07201
PH: 908-882-9911
Hours: M-F 6AM-4PM

Yards in Pennsylvania

Harrisburg, PA

1400 Hagy Way
Harrisburg, PA 17110
PH: 717-614-8954
FX: 717-996-3165
Hours: M-F 7AM-4PM

Yards in Virginia

Manassas Park, VA

8429 Euclid Ave.
Manassas Park, VA 20111
PH: 703-631-6633
Hours: M-F 6AM-4PM
Sat 7AM-12PM

Marshall, VA

7595 Capitol Way
Marshall, VA 20115
PH: 540-364-1202
Hours: M-F 6AM-4PM
Sat 7AM-12PM

Springfield, VA

7622 Backlick Rd.
Springfield, VA 22150
PH: 703-644-6970
Hours: M-F 4:30AM-4PM
Sat 6AM-12PM

Stafford, VA

16 Baron Park Rd
Fredericksburg, VA 22405
PH: 540-368-6678
Hours: M-F 6:30AM-4PM

Vienna, VA

431 Mill St. NE
Vienna, VA 22180
PH: 703-281-5151
FX: 703-281-4414
Hours: M-F 6AM-4PM
Sat 7AM-12PM

Winchester, VA

195 Lenoir Dr.
Winchester, VA 22603
PH: 540-662-9142
FX: 540-722-2136
Hours: M-F 6AM-4PM

Need to talk to an expert to help with your next project?

Experienced and helpful customer service representatives are standing by ready to help.