Basement & Crawl Space Wall Framing
in Myrtle Beach, SC
Myrtle Beach Elite Drywall has been framing walls in basements and crawl spaces across the Grand Strand for 20+ years! Below-grade and semi-conditioned spaces in Horry County present framing conditions that do not exist in most inland markets. The Grand Strand's water table is shallow — in many parts of Myrtle Beach and the surrounding coastal plain, it sits within two to four feet of the surface — and soil moisture transmission through foundation walls and slabs is continuous rather than seasonal. Framing a crawl space or below-grade room with standard dimensional lumber and standard drywall in this environment produces predictable results: wood rot, mold colonization, and structural degradation within three to seven years. According to the American Society of Home Inspectors, crawl space moisture problems are among the most common defects found in coastal Southeast residential inspections. The correct approach requires pressure-treated or moisture-resistant framing materials, vapor management at the foundation level, and moisture-resistant board on every finished surface.
Properly framed and finished below-grade walls add usable conditioned square footage to a home and protect the structural integrity of the space from ongoing moisture exposure. Myrtle Beach Elite Drywall frames, boards, and finishes crawl space and below-grade walls using materials and sequencing appropriate for coastal South Carolina's moisture environment — including coordination with vapor barrier installation and HVAC configuration where applicable.
Why Choose Us
Local Drywall Contractors with Grand Strand Experience
We have completed hundreds of residential and commercial drywall projects across Myrtle Beach, North Myrtle Beach, Surfside Beach, Murrells Inlet, Conway, Carolina Forest, Forestbrook, and the surrounding Horry and Georgetown county communities.
Full Level 1–5 Finishing and Texture Matching on Every Project
Every surface we finish is taken through the correct taping and finishing sequence for the specified paint sheen and lighting condition — with texture matched on every repair scope before we leave the job.
Proven Track Record Across Residential and Commercial Projects
In our most recent client satisfaction review, 97% of respondents rated finish quality and texture matching as "met or exceeded expectations" — across new construction, remodel, water damage repair, and commercial buildout scopes.
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Basement & Crawl Space Wall Framing
Services We Provide
Pressure-Treated Stud Wall Framing
In below-grade and crawl space applications in coastal South Carolina, bottom plates and any framing member in contact with or within close proximity to concrete must be pressure-treated lumber rated for ground contact. Standard kiln-dried dimensional lumber in contact with a concrete slab in a high-humidity environment will absorb moisture and begin deteriorating within one to three years. We frame all below-grade and crawl space walls with pressure-treated bottom plates as standard, and specify pressure-treated or engineered lumber for studs in applications where sustained elevated humidity is anticipated.
Steel Stud Framing for Below-Grade Applications
Light-gauge steel stud framing eliminates the moisture vulnerability of wood entirely and is increasingly the preferred framing method for conditioned crawl spaces and below-grade rooms in coastal markets. Steel studs do not rot, do not absorb moisture, and do not provide a substrate for mold growth. The trade-off is thermal bridging — steel conducts heat more efficiently than wood — which requires appropriate insulation detailing to prevent condensation on the stud face in air-conditioned spaces. We frame below-grade walls in steel where moisture exposure warrants it and detail the insulation layer accordingly.
Vapor Barrier Coordination & Wall Assembly
Framing a below-grade wall correctly requires understanding the vapor drive in the specific space — whether moisture is moving from the exterior soil through the foundation wall inward, or from the conditioned interior outward. In coastal SC homes, vapor typically moves inward from the warm, humid exterior during summer months, which means vapor retarders belong on the exterior side of the insulation, not the interior. Installing a vapor barrier on the wrong side of a wall assembly in this climate traps moisture in the wall cavity and accelerates the very problems it is meant to prevent. We assess vapor drive direction before specifying the wall assembly.
Insulation Framing & Cavity Preparation
Below-grade wall cavities in Horry County homes require insulation that does not absorb moisture and does not provide an organic substrate for mold. Closed-cell spray foam applied directly to the foundation wall is the highest-performing solution — it serves simultaneously as insulation, air barrier, and vapor retarder, and its closed-cell structure does not absorb liquid water. Rigid foam board is an alternative for walls where spray foam is not practical. We frame cavities to accommodate the specified insulation type and coordinate with insulation contractors where spray foam application is part of the scope.
Drywall Installation on Below-Grade Walls
Once framing and insulation are complete, all below-grade wall surfaces receive fiberglass-faced mold-resistant drywall as standard — not greenboard, not standard paper-faced board. The sustained humidity in coastal SC crawl spaces and below-grade rooms exceeds the moisture tolerance of any paper-faced gypsum product over time. We install, tape, finish, and prime below-grade drywall using the same five-level finishing sequence as above-grade work, with primer specified for fiberglass-faced board.
Conditioned Crawl Space Enclosure
Horry County building codes allow and in some configurations require crawl spaces to be conditioned rather than vented. A conditioned crawl space is sealed from exterior air, insulated at the foundation wall rather than the floor above, and connected to the home's HVAC system. Framing the foundation walls of a conditioned crawl space — including blocking, nailers, and the transition detail at the floor system above — is a distinct scope from above-grade framing and requires coordination with the mechanical system. We build conditioned crawl space wall assemblies to current Horry County code requirements.
Types of Properties We Serve
Single-Family Residential — Existing Homes
The majority of older single-family homes in Myrtle Beach and surrounding communities like Conway, Surfside Beach, and Murrells Inlet were built on vented crawl spaces with no below-grade conditioned space. Homeowners converting vented crawl spaces to conditioned enclosures, or finishing previously unfinished below-grade areas, represent the primary residential demand for this service. These projects require demolition of any existing deteriorated framing, assessment of the foundation wall and slab condition, and new framing with moisture-appropriate materials throughout.
New Construction
Production builders along the US-501 and Carolina Forest corridors are increasingly specifying conditioned crawl spaces on new builds in response to homeowner demand and energy code requirements. We provide below-grade framing packages for new construction as a standalone scope, coordinating with foundation, mechanical, and insulation contractors on sequencing.
Investment & Rental Properties
Below-grade moisture problems in investment properties in the Grand Strand market — including the dense rental stock in North Myrtle Beach and along Ocean Boulevard — are frequently discovered during renovation or ownership transition. Addressing framing that has deteriorated from sustained moisture exposure requires complete removal and replacement with appropriate materials. We assess the full extent of moisture-related framing damage before quoting replacement scope to avoid mid-project scope creep.
Commercial & Light Industrial
Commercial properties along US-17, Kings Highway, and the Myrtle Beach light industrial corridors occasionally require below-grade or semi-conditioned wall framing for storage, utility, or mechanical spaces. Commercial below-grade framing must meet Horry County commercial building code requirements for fire rating, framing gauge, and moisture resistance. We deliver commercial below-grade framing to those standards with documentation for inspection.
What Our Customers are Saying
"We converted our crawl space to a conditioned space and needed the foundation walls framed and drywalled. They used the right materials throughout — pressure-treated plates, steel studs, mold-resistant board. It's been two years and the space is completely dry."
— Mark D., Myrtle Beach, SC
"We bought a house in Conway that had a finished room below grade with rotted framing and moldy drywall. They tore it out, reframed with the correct materials, and finished it properly. The difference is night and day."
— Angela S., Conway, SC
"Our crawl space had standard lumber framing that was completely deteriorated from moisture. They replaced everything with pressure-treated material and closed the space correctly. Our HVAC contractor said it was the cleanest crawl space wall assembly he'd seen on a retrofit."
— Brian F., Surfside Beach, SC
"They framed and drywalled the below-grade storage area on a commercial property we manage on Kings Highway. Hit the inspection on the first pass."
— Donna R., Myrtle Beach, SC
Basement & Crawl Space Wall Framing FAQs
Why can't standard lumber be used for crawl space wall framing in Myrtle Beach?
Standard kiln-dried dimensional lumber has a moisture content of around 19% or less at the time of installation. In a coastal South Carolina crawl space, ambient relative humidity regularly exceeds 70% and concrete foundation walls transmit soil moisture continuously. Standard lumber in sustained contact with these conditions absorbs moisture, loses structural integrity, and supports mold and wood rot within a few years. Pressure-treated lumber rated for ground contact or light-gauge steel framing are the appropriate materials for this application. Horry County inspectors increasingly flag standard lumber bottom plates in below-grade applications as a code deficiency on renovation permits.
What is the difference between a vented and a conditioned crawl space?
A vented crawl space uses foundation vents to exchange interior crawl space air with exterior air — the original design intent was to dilute moisture, but in hot humid coastal climates, venting brings warm humid exterior air into a cooler crawl space, causing condensation on framing and mechanical systems. A conditioned crawl space seals all foundation vents, insulates the foundation wall rather than the floor above, and connects the space to the home's HVAC system. Building science research from organizations including the Advanced Energy Corporation has documented that conditioned crawl spaces in humid climates consistently outperform vented crawl spaces in moisture control and energy efficiency.
Do I need a permit to finish or frame a crawl space in Horry County?
In most cases, yes. Finishing a previously unfinished below-grade or crawl space area — including framing, insulation, drywall, and electrical — requires a building permit from Horry County. Converting a vented crawl space to a conditioned crawl space also typically triggers a mechanical permit for the HVAC modification. We advise on permit requirements before starting any below-grade framing scope and can coordinate with the permitting office where needed.
Can you coordinate with my encapsulation or HVAC contractor?
Yes. Below-grade framing is one component of a larger assembly that includes vapor barrier installation, insulation, and mechanical connection. We sequence our framing work around encapsulation and insulation contractors and communicate directly with HVAC contractors on the conditioned crawl space transition detail. Proper sequencing between trades is the most common failure point on crawl space conversion projects.
How long does a crawl space wall framing project take?
A standard single-family crawl space framing and drywall project — foundation wall framing, mold-resistant board installation, taping, and finishing — typically runs three to five working days depending on the linear footage of wall and access conditions. Projects requiring demolition of deteriorated existing framing add one to two days for removal and disposal before new work begins.
Myrtle Beach Elite Drywall provides basement and crawl space wall framing, mold-resistant drywall installation, and below-grade wall finishing for residential and commercial properties throughout Horry and Georgetown counties, including Myrtle Beach, North Myrtle Beach, Surfside Beach, Murrells Inlet, Conway, Carolina Forest, Forestbrook, Grande Dunes, Briarcliffe Acres, and DeBordieu Colony. Fully insured.
Contact us to schedule a quote: (843) 585-8273.