36652 DuPont Boulevard Selbyville, DE 19975

Mon - Fri: 6:30am - 4:00pm Sat - Sun: Closed

P: 302-436-8624 F: 302-436-8631

Capitol Building Supply, Inc. (CBSI) is your trusted source for construction products in Selbyville, DE. As a GMS company, CBSI provides quality building supplies to commercial and residential construction customers across the Mid-Atlantic United States through our yard locations in Delaware, Maryland, Virginia, New Jersey, Pennsylvania, Ohio, and Washington, DC.

CBSI serves Delaware construction customers in Selbyville and surrounding areas like Dover and Rehoboth Beach, as well as Eastern Shore communities like Salisbury and Easton, MD. Our building supply yard on DuPont Boulevard offers a diverse inventory that includes:

• Acoustical Ceilings

• Access Doors

• Air & Moisture Protection

• Caulking & Adhesives

• Drywall

• EIFS & Stucco

• Fasteners

• Firestop

• FRP

• Insulation

• Joint Treatment

• Lumber

• Safety

• Steel Studs & Tracks

• Surface Protection

• Tools

At CBSI, we work hard to provide the best drywall options in Delaware, for types I-V construction uses. In Selbyville, DE, Capitol Building Supply, Inc. offers a wide range of standard drywall, glass-mat panels, and specialty products including:

• Regular & Type X drywall

• Impact-resistant wallboard

• Fire-rated drywall

• Mold-resistant drywall

• Tile backer

• Shaftwall liner

• Sheathing

• Specialty drywall products

Ask our expert staff and let them help you select the right drywall materials for your Delaware construction projects.

Capitol Building Supply, Inc. offers one of the largest in-stock inventories of steel framing, steel studs, track systems, and steel accessories in Delaware. We partner with leading steel manufacturers like ClarkDietrich®, Simpson Strong-Tie®, The Steel Network®, Gregory and others, to bring you top-rated products.

We also offer inclusive manufacturer support for all our products, so you can have full confidence when you buy steel from CBSI in Selbyville. Steel and all other building materials from CBSI can be delivered straight to your commercial or residential jobsite.

Visit our DuPont Boulevard yard in Selbyville, DE, and browse our full inventory of acoustical ceiling panels. CBSI is a proud distributor of quality Armstrong® acoustical grid and tile products, as well as:

• Angled tegular

• Beveled tegular

• Linear

• Molding and trim

• Reverse tegular

• Square lay-in

• Square tegular

• Vector

Shop for ceiling tiles at CBSI’s Selbyville location and let our experts help you find exactly the right acoustical products for your DE building projects.

CBSI is a top provider of insulation supplies for commercial and residential building projects across Delaware. For insulation projects of any size, CBSI has what you need to get the job done right. We offer a full range of quality insulation solutions in Selbyville, DE, for both interior and exterior applications, including:

• Batt insulation

• Foil/FSK

• Rigid foam board insulation

• Loose-fill and blown-in insulation

• Mineral wool insulation

• Semi-rigid fiberglass panels

• Unfaced insulation

Our products come from the best insulation brands—manufacturers like Johns Manville, Knauf®, Owens Corning, and Rockwool®. Let our experienced staff help you choose the proper insulation for your specific jobsite requirements, including the correct R-value.

Building in Selbyville, DE? Our staff of experts bring decades of combined experience in the construction industry to help our customers find the exact products they need.

Let CBSI on DuPont Boulevard in Selbyville be your number one resource for local building materials. Our yards across DE, MD, VA, NJ, PA, OH, and Washington, DC, offer a large in-stock selection of products ready for immediate pickup. We also offer delivery to your jobsite, on time, with full stock and scatter service.

Need drywall, steel, acoustical ceiling tile, insulation, or other construction products in Delaware? Shop at CBSI in Selbyville, DE for construction supplies from the building industry’s best manufacturers.