Deck Cost in Knoxville, TN (2026 Price Guide)
How much does a new deck cost in Knoxville and the surrounding area? Here are realistic price ranges for composite and wood deck projects based on actual builds.
$15,000 - $150,000+
Typical range for residential decks
Pricing reviewed June 2026 by Morales Outdoor Living
What to Expect
Every project is unique. These ranges reflect typical East Tennessee installations.
Small / Standard Deck
$15k - $30k
- ✓Up to 200 sq ft
- ✓Pressure-treated wood or basic composite
- ✓Standard railing
- ✓Stairway to grade
- ✓Permits included
Mid-Size Entertainment Deck
$35k - $60k
- ✓200 to 400 sq ft
- ✓Trex or TimberTech composite
- ✓Cable or aluminum railing
- ✓Built-in bench or planter
- ✓Under-deck drainage
- ✓LED lighting
Large / Multi-Level Deck
$60k - $150k+
- ✓400+ sq ft or multi-level
- ✓Premium composite or hardwood
- ✓Custom railing & stairs
- ✓Covered section or pergola
- ✓Outdoor kitchen cutout
- ✓Hot tub reinforcement
Financing available through HFS Financial
Flexible monthly payments, fast online approval, no home equity required. Options for every budget.
Pricing Factors
Deck Size (Square Footage)
The single biggest cost driver. More square footage means more materials, more labor, and more structural support.
Material Choice
Pressure-treated pine is most affordable. Composite (Trex, TimberTech) costs 2-3x more upfront but lasts longer with no maintenance.
Height & Structural Needs
Elevated decks require more posts, beams, and bracing. Second-story decks cost significantly more than ground-level builds.
Railing Type
Wood railings are included in basic pricing. Cable, glass, and composite railings add cost but dramatically improve the look.
Stairs & Access
Wide staircases, wrap-around stairs, and landing platforms add material and labor but improve flow and safety.
Add-Ons & Features
Built-in seating, planters, privacy screens, pergolas, and lighting all enhance usability at additional cost.
Frequently Asked
How much does a deck cost in Knoxville?+
A new deck in the Knoxville area runs about $15,000 to $150,000+. A standard composite deck lands around $15,000 to $30,000, a mid-size entertainment deck with premium boards and lighting runs $35,000 to $60,000, and a large or multi-level deck with a covered section can reach $60,000 to $150,000+.
Is composite or pressure-treated wood cheaper?+
Pressure-treated wood is cheaper up front, but composite (Trex, TimberTech, AZEK) costs about 2 to 3 times more initially and lasts far longer with almost no maintenance and 25 to 50 year warranties, so it usually wins on lifetime cost in our humidity.
What drives deck cost the most?+
Square footage is the biggest driver, followed by material choice, height and structural needs (elevated and multi-level decks cost more), railing type, and add-ons like under-deck drainage, lighting, or a covered section.
Do you handle the deck permit?+
Yes. Permits and inspections are included. Most attached and elevated decks require them, and we manage the whole process, including the ledger and flashing details inspectors check most closely.
Related Resources
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