Deck Building Cost in Lexington, SC: What to Expect
Nailed It Roofing & Renovations · September 22, 2026 · Decks
Deck building cost in Lexington, SC typically runs $25 to $60 per square foot installed, depending on whether you choose pressure-treated wood or composite decking, according to national installed-cost data from Angi. For a typical 300-square-foot deck, that works out to roughly $7,500 to $18,000 before permits, railing upgrades, or stairs. Nailed It Roofing & Renovations has built decks across Lexington and the Columbia, SC area since 2016, and your actual number depends on size, height off the ground, material, and a few local permit details covered below.
What Drives Deck Building Cost in Lexington, SC
A handful of factors move the price more than anything else on a deck build in the Lexington, SC area:
- Size and layout — square footage is the biggest driver, and multi-level or wraparound decks add framing and labor.
- Decking material — pressure-treated pine costs less upfront; composite costs more but skips the yearly sanding and staining.
- Height off the ground — an elevated deck needs more footings, posts, and structural framing than a ground-level one.
- Railing — black aluminum railing, our most-requested option, costs more than basic wood balusters but holds up better outdoors.
- Permits and HOA approval — Lexington County requires a building permit for most deck builds, and homes in an HOA or on Lake Murray often need separate design approval too.
- Add-ons — built-in seating, stairs, lighting, and pergola covers are priced on top of the base deck.
Pressure-Treated vs. Composite Decking: Cost Comparison
Most homeowners in the Midlands choose between two materials: pressure-treated wood and composite decking.
Pressure-treated wood:
- Lower upfront material and labor cost — typically the cheaper option per square foot.
- Needs re-staining or sealing every year or two to hold up against South Carolina's humidity.
- Classic wood look, but shows wear faster than composite.
Composite decking:
- Higher upfront cost, but no annual staining or sealing.
- Resists rot, splintering, and fading better through SC summers.
- Comes in a wider range of colors, including boards that pair well with black aluminum railing.
Neither material is the wrong choice — it comes down to whether you'd rather pay more upfront or spend a weekend every year maintaining the deck.
See Angi's wood vs. composite decking comparison for a closer look at how the two materials hold up over time.
Permits and HOA Rules for Decks in the Lexington, SC Area
Lexington County requires a building permit for most new deck construction, with inspections at set points during the build. If your property is in an HOA — including many communities around Lake Murray — you'll likely need separate approval for railing color, decking material, or deck height before the county permit gets pulled. We've handled dock permitting through Lexington County, HOAs, and Dominion Energy on Lake Murray for years, and we pull the same threads for deck projects: confirming what's required before work starts, not after.
What's Included in a Nailed It Deck Build
A deck build from Nailed It Roofing & Renovations includes the framing, decking material, and railing as one project — we typically don't do "only" rails as a standalone service, since rail work is part of the structural build. Depending on the project, that can also include stairs, built-in seating, or a covered pergola over part of the deck. We use pressure-treated or composite decking with black aluminum railing as our most common combination, matched to the home and, where it applies, the HOA's requirements.
Browse more of our completed projects in the Lexington, SC service area.
How much does it cost to build a deck in Lexington, SC?
Most deck projects in the Lexington, SC area run $25 to $60 per square foot installed, depending on material and size. A 300-square-foot deck typically lands between $7,500 and $18,000 before railing upgrades, stairs, or permit fees. Pressure-treated wood sits at the lower end; composite decking costs more upfront but needs less upkeep.
Is composite decking worth the extra cost over pressure-treated wood?
It depends on how much yearly maintenance you want to take on. Composite costs more upfront but skips the re-staining and sealing pressure-treated wood needs every year or two in South Carolina's humidity. If you'd rather pay more now and spend less time maintaining it later, composite is usually worth it.
Do I need a permit to build a deck in Lexington County, SC?
Yes — Lexington County requires a building permit for most new deck construction, with inspections at set points during the build. If your home is in an HOA or a Lake Murray community, you may also need separate approval for railing color, material, or deck height before the county permit is pulled.
How long does it take to build a new deck?
A straightforward ground-level deck typically takes one to two weeks from the start of framing to the final walkthrough. Elevated decks, composite materials, or add-ons like built-in seating or a pergola cover add time. Permit approval timelines through Lexington County can also affect your actual start date.
Does Nailed It Roofing & Renovations install deck railing by itself?
No — railing is installed as part of a full deck build, not as a standalone service. Since railing ties directly into the deck's structural framing, we bundle it into the overall project rather than quoting it separately. If you need a full deck build, railing is included in that scope.
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