Quality Construction Products in DE, MD, NJ, PA, VA and Washington, D.C.
Originally founded as Fairfax Building Supply, the company that would become Capitol Building Supply has a legacy 35+ years in the making of providing the best construction products, and exceptional service, in multiple states surrounding the Washington, DC metro area.
Today, as the largest company in the GMS family, CBSI has 500+ employees serving residential and commercial construction customers from 19 yard locations.
Delaware
Dover | Selbyville
Maryland
Baltimore (Quad Ave. & Hamburg St.) | Beltsville | Bladensburg | Frederick | Gaithersburg | Hagerstown | Upper Marlboro
New Jersey
Bayonne | Camden
Pennsylvania
Harrisburg
Virginia
Fredericksburg | Manassas Park | Marshall | Springfield | Vienna | Winchester
Washington, D.C.
Customer satisfaction, with a “safety-first” approach, is our priority at Capitol Building Supply, Inc. Our commitment to you extends through a range of services, including:
- Specialty product orders
- Expert advice
- Commercial construction delivery
- Residential construction delivery
- After-hours and weekend deliveries
We generally deliver within a ~100 mile radius of our yard locations, subject to traffic and other considerations.
Building Supplies & Products
- Drywall
- Our Drywall inventory includes regular and specialty drywall products; fire-rated drywall; Type-X drywall, moisture and mold-resistant drywall; impact-resistant drywall; shaft liner and other drywall accessories.
- Steel Framing
- Our Steel inventory includes variable lengths and multiple gauges of steel; steel studs; steel framing and other steel products and accessories.
- Acoustical Ceilings
- Our Acoustical inventory includes acoustical panels; acoustical grids; and other products and accessories for acoustical ceilings.
- Additional Products
- Other quality building products available at Capitol Building Supply, Inc. include: insulation, hand and power tools and other construction accessories.
Distribution Centers & Locations
Capitol Building Supply, Inc. - Baltimore
6813 Quad Avenue
Baltimore, MD 21237
Mon - Fri: 6:00am - 5:00pm
Sat: 7:00am - 12:00pm
Sun: Closed
P:410-284-2800
F:410-284-2899
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Capitol Building Supply, Inc. - Baltimore
1303 West Hamburg Street
Baltimore, MD 21230
Mon - Fri: 6:00am - 5:00pm
Sat: 7:00am - 12:00pm
Sun: Closed
P:410-685-1080
F:410-685-1084
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Capitol Building Supply, Inc. - Bayonne
240 E 5th Street
Bayonne, NJ 07002
Mon - Fri: 7:00am - 4:30pm
Sat - Sun: Closed
P:201-998-2400
F:201-998-2700
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Capitol Building Supply, Inc. - Beltsville
12340 Conway
Beltsville, MD 20705
Mon - Fri: 6:00am - 5:00pm
Sat: 7:00am - 12:00pm
Sun: Closed
P:301-937-6366
F:301-937-8710
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Capitol Building Supply, Inc. - Bladensburg
4501 46th Street
Bladensburg, MD 20710
Mon - Fri: 6:00am - 5:00pm
Sat: 7:00am - 12:00pm
Sun: Closed
P:240-764-1236
F:240-764-1235
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Capitol Building Supply, Inc. - Camden
201 Erie Street
Camden, NJ 08102
Mon - Fri: 7:00am - 5:00pm
Sat: 7:00am - 12:00pm
Sun: Closed
P:856-576-6964
F:856-576-6971
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Capitol Building Supply, Inc. - Dover
5119 N. Dupont Highway
Dover, DE 19901
Mon - Fri: 6:00am - 4:00pm
Sat - Sun: Closed
P:302-678-4601
F:302-678-8034
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Capitol Building Supply, Inc. - Frederick
8006 Reichs Ford Road
Frederick, MD 21704
Mon - Fri: 5:00am - 5:00pm
Sat: 7:00am - 12:00pm
Sun: Closed
P:240-436-3500
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Capitol Building Supply, Inc. - Fredericksburg
16 Baron Park Rd.
Fredericksburg, VA 22405
Mon - Fri: 6:00am - 5:00pm
Sat - Sun: Closed
P:540-368-6678
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Capitol Building Supply, Inc. - Gaithersburg
7870 Beechcraft Avenue
Gaithersburg, MD 20879
Mon - Fri: 6:00am - 5:00pm
Sat: 7:00am - 12:00pm
Sun: Closed
P:301-921-9207
F:301-927-9446
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Capitol Building Supply, Inc. - Hagerstown
1225 Maryland Avenue
Hagerstown, MD 21740
Mon - Fri: 6:00am - 5:00pm
Sat: 7:00am - 12:00pm
Sun: Closed
P:301-739-3090
F:301-739-1021
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Capitol Building Supply, Inc. - Harrisburg
1001 Herr Street
Harrisburg, PA 17103
Mon - Fri: 7:00am - 5:00pm
Sat - Sun: Closed
P:717-614-8954
F:717-996-3165
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Capitol Building Supply, Inc. - Manassas Park
8429 Euclid Avenue
Manassas Park, VA 20111
Mon - Fri: 6:00am - 5:00pm
Sat: 7:00am - 12:00pm
Sun: Closed
P:703-631-6633
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Capitol Building Supply, Inc. - Marshall
7595 Capitol Way
Marshall, VA 20115
Mon - Fri: 6:00am - 5:00pm
Sat: 7:00am - 12:00pm
Sun: Closed
P:540-364-1202
F:540-364-1519
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Capitol Building Supply, Inc. - Selbyville
36652 DuPont Boulevard
Selbyville, DE 19975
Mon - Fri: 6:30am - 4:00pm
Sat - Sun: Closed
P:302-436-8624
F:302-436-8631
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Capitol Building Supply, Inc. - Springfield
7622 Backlick Road
Springfield, VA 22150
Mon - Fri: 4:30am - 5:00pm
Sat: 6:00am - 12:00pm
Sun: Closed
P:703-644-6970
F:571-322-0028
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Capitol Building Supply, Inc. - Upper Marlboro
7811 Penn Western Court
Upper Marlboro, MD 20772
Mon - Fri: 6:00am - 5:00pm
Sat: 7:00am - 12:00pm
Sun: Closed
P:240-455-0319
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Capitol Building Supply, Inc. - Vienna
431 Mill Street NE
Vienna, VA 22180
Mon - Fri: 5:00am - 5:00pm
Sat: 6:00am - 12:00pm
Sun: Closed
P:703-281-5151
F:703-281-4414
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Capitol Building Supply, Inc. - Washington
113 Potomac Ave SW
Washington, DC 20024
Mon - Fri: 5:00am - 4:00pm
Sat: 7:00am - 12:00pm
Sun: Closed
P:202-554-9190
F:202-863-1364
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Capitol Building Supply, Inc. - Winchester
195 Lenoir Drive
Winchester, VA 22603
Mon - Fri: 6:00am - 5:00pm
Sat: 7:00am - 12:00pm
Sun: Closed
P:540-662-9142
F:540-722-2136
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