Deck Building Cost in Austin, TX
A 16×20 ft deck in Austin costs $7,500 (pressure-treated) to $16,100 (composite) — 7% above the national average.
Austin — PT Wood Deck (16×20)
$7,500
$23/sqft installed
Composite (Trex)
$16,100
$50/sqft; low-maintenance
vs National Average
7% above
Austin labor market
Deck Cost in Austin by Material — 2026 (16×20 ft, 320 sqft)
| Material | Total Cost | Per Sqft | Lifespan |
|---|---|---|---|
| Pressure-treated wood | $7,500 | $23/sqft | 15–20 yrs |
| Cedar / Redwood | $11,300 | $35/sqft | 20–30 yrs |
| Composite (Trex, Fiberon) | $16,100 | $50/sqft | 25–30 yrs |
| PVC / capped composite | $18,200 | $57/sqft | 30–50 yrs |
Includes framing, decking, 1 set of stairs, basic railing, and permit. Second story or rooftop decks add 25–50%. Austin labor rates are 7% above the national average.
Get Free Deck Quotes in Austin
Deck builder quotes vary $2,000–$5,000 in Austin for the same project. Get 3 bids from licensed contractors.
Get Free Deck Quotes on AngiAdvertising disclosure: links are paid partnerships. Learn more.
FAQs — Deck Cost in Austin
How much does a deck cost in Austin?
A standard 16×20 ft deck (320 sqft) in Austin, TX costs $7,500 for pressure-treated wood, $11,300 for cedar, and $16,100 for composite (Trex) — 7% above the national average of $8,500. Per-sqft rates: PT wood $23/sqft, composite $50/sqft. Costs include framing, decking boards, stairs, and basic railings.
Is composite or wood decking better in Austin?
In Austin's moderate climate, pressure-treated wood ($7,500) is cost-effective if you're willing to seal it every 2–3 years. Composite ($16,100) is the no-maintenance premium choice. Break-even on composite vs. PT wood maintenance savings is typically 10–12 years.
Do I need a permit to build a deck in Austin?
Yes — most deck projects in Austin require a building permit if the deck is attached to the house, over 30 inches off the ground, or over 200 sqft. Permits cost $150–$425 in Austin and require structural drawings and a post-installation inspection. A licensed TX contractor will handle permits as part of the project. Unpermitted decks must be disclosed at sale and may need to be removed or permitted retroactively.
How much does a 12×12 deck cost in Austin?
A 12×12 ft deck (144 sqft) in Austin, TX costs: PT wood $4100–$4900, cedar $6200–$7300, composite $8900–$10500. Smaller decks have higher per-sqft costs since fixed costs (footings, framing, stairs) spread over fewer square feet. A 12×12 is popular for smaller yards and costs approximately 55–65% of a 16×20.
What is the ROI on a deck in Austin?
A wood deck in Austin recoups approximately 65–75% of cost at resale according to Remodeling Magazine's Cost vs. Value report. A $7,500 PT wood deck adds $5300–$5600 to your home's value. Composite decks often recoup a similar dollar amount to wood but at a higher cost, so the percentage ROI is lower. In Austin's market, outdoor living spaces are increasingly valued — a well-built deck is one of the top outdoor ROI projects.