4550 Gaynor Avenue Charleston, SC 29405

Mon - Fri: 7:00am - 4:00pm Sat - Sun: Closed

P: 843-554-9070

Capitol Materials Coastal is your trusted source for construction products in Charleston, SC. As a GMS Company, Capitol Materials Coastal provides quality building supplies to commercial and residential construction customers from our yard locations across South Carolina, Georgia, and Florida.

Capitol Materials Coastal serves South Carolina construction customers in Charleston and surrounding areas like Mt. Pleasant, Hanahan, Georgetown, and Kiawah Island. Our building supply yard on Gaynor Avenue offers a diverse inventory that includes:

• Drywall

• Steel framing, track, and studs

• Joint treatments and finishing products

• Acoustical ceiling tiles

• Insulation

• Access doors

• Air and moisture protection

• Caulk and adhesives

• Concrete

• EIFS and stucco

• Fasteners

• Firestop products

• FRP

• Lumber

• Safety products

• Siding

• Surface protection products

• Tools and more

At Capitol Materials Coastal, we work hard to provide the best drywall options in South Carolina for types I-V construction uses. In Charleston, SC, Capitol Materials Coastal 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

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

Capitol Materials Coastal, Inc. offers one of the largest in-stock inventories of steel framing, steel studs, track systems, and steel accessories in South Carolina. We partner with leading steel manufacturers like ClarkDietrich®, ITW Buildex, Marino\WARE®, 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 Capitol Materials Coastal in Charleston. Steel and all other building materials from Capitol Materials Coastal can be delivered straight to your commercial or residential jobsite.

Visit our Gaynor Avenue yard in Charleston, SC, and browse our full inventory of acoustical ceiling panels. Capitol Materials Coastal is a proud distributor of quality Armstrong® acoustical grid and tile products, as well as:

• Angled tegular tiles

• Beveled tegular tiles

• Beveled tongue and groove tiles

• Flush tegular

• Exposed tee/cross tee

• Square edge

• Square lay-in

• Step-scored tegular

• Vector

Shop for ceiling tiles in Charleston, SC’s Capitol Materials Coastal and let our experts help you find exactly the right acoustical products for your SC building projects.

Capitol Materials Coastal is a top provider of insulation supplies for commercial and residential building projects across South Carolina. For insulation projects of any size, Capitol Materials Coastal has what you need to get the job done right. We offer a full range of quality insulation solutions in Charleston, SC for both interior and exterior applications, including:

• Rigid foam board insulation

• Unfaced insulation

• Mineral wool insulation

• Kraft insulation

• Foil insulation

Our products come from the best insulation brands—manufacturers like CertainTeed®, DuPont™, Guardian, and Hunter. Let our experienced staff help you choose the proper insulation for your specific jobsite requirements, including the correct R-value.

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

Let Capitol Materials Coastal on Gaynor Avenue in Charleston be your number one resource for local building materials. Our yards across FL, GA, and SC 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.

In need of drywall, steel, acoustical ceiling tile, insulation, or other construction products in South Carolina? Shop at Capitol Materials Coastal in Charleston, SC for construction supplies from the building industry’s best manufacturers.