Investment Guide · Knoxville & East Tennessee

Deck cost guide.What to expect, by project size.

Understanding the cost of a new deck can be confusing — pricing varies with size, materials, structure, and site conditions. This guide gives you a realistic range for what most projects cost, so you know what to expect before scheduling a consultation.

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Realistic ranges by size · Deck-first pricing · Knoxville & East Tennessee

Finished multi-level composite deck with aluminum railings on a LeBlanc build

Specialty builder since 2002 Custom decks & outdoor structures 3-Year Workmanship Warranty Licensed & insured · Lic #79196

Realistic ranges, not guesses

Most projects fall within predictable ranges.

Every deck is custom — but size is the biggest driver of cost, so we group typical investment by project size.

Exact pricing comes from a consultation, where we look at your space, materials, and site conditions. Before you get there, these ranges help you see where your project is likely to land — and whether our work fits your budget.

Typical investment by size

Four ranges, by project size.

Each range reflects the full build for that size — structure, surface, railings, and the features typical at that scale.

Small composite deck / platform deck on a LeBlanc build

Small Deck

$10,000–$25,000

100–200 sq ft

Ideal for smaller backyards, grill areas, or simple platform decks.

Medium composite deck with stairs on a LeBlanc build

Medium Deck

$20,000–$45,000

200–350 sq ft

The most common project size — room for stairs and upgraded materials.

Large multi-zone composite deck on a LeBlanc build

Large Deck

$40,000–$75,000

350–600 sq ft

Multiple zones, larger stair systems, and more advanced structural needs.

Custom multi-level estate deck with covered structure on a LeBlanc build

Custom / Estate

$70,000–$100,000+

600+ sq ft or complex

Multi-level designs, roof structures, and integrated lighting.

What impacts cost

Why two decks the same size can price differently.

Size sets the range; these factors decide where a project lands within it.

Deck size & layout — the footprint and shape of the build.
Height & structure — elevation and the structural requirements it drives.
Material selections — decking line and framing choices.
Railing systems — aluminum, cable, or glass infill.
Stairs & access — stair runs, landings, and access points.
Site conditions & access — terrain and how reachable the site is.
Demolition & disposal — removing and hauling an existing structure.

Not sure which range fits your project? Start your project →

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See where your project fits.

Tell us your size, materials, and vision, and we'll give you a clear, honest picture of the investment — with no pressure and no obligation.

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Start with a short form — we'll review your project and reach out. Serving Knoxville & East Tennessee · Licensed & insured.

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Engineered outdoor structures built for long-term performance. · Knoxville & East Tennessee · Lic #79196