Cost to Build a Deck in Phoenix, AZ (2026)
In Phoenix a 12×16 ft deck costs about $4,075 in pressure-treated pine and $9,107 in composite, installed — right in line with the US average. Below: local prices by size, footing depth, permits and a calculator priced for Phoenix.
Pressure-treated pine
$19–$25 /sq ft
Cedar
$29–$38 /sq ft
Composite
$42–$55 /sq ft
Deck cost calculator for Phoenix
Priced with Phoenix labour, material and footing-depth factors. Change any input and the estimate updates.
Estimated installed cost
$8,014 – $10,472
192 sq ft · about $47.43/sq ft
- Materials
- $5,717
- Labour
- $3,389
- Footings (12 in deep)
- 3 × about $128
- Frost-depth adjustment
- −$115
Mid-range estimate for a rectangular deck attached to the house, with one beam line per 12 ft of depth and footings every 8 ft. Excludes demolition, permits and site work. For railing, stairs and a full line-item breakdown use the main deck cost calculator.
Phoenix deck cost by size and material
Mid-range installed prices for a standard-height deck attached to the house, with footings at 12 inches. Add railing and stairs in the deck cost calculator.
| Deck size | Pressure-treated pine | Cedar | Composite |
|---|---|---|---|
| 10 × 10 ft (100 sq ft) | $2,067 | $3,165 | $4,688 |
| 12 × 12 ft (144 sq ft) | $3,027 | $4,608 | $6,801 |
| 12 × 16 ft (192 sq ft) | $4,075 | $6,183 | $9,107 |
| 16 × 20 ft (320 sq ft) | $6,676 | $10,190 | $15,062 |
| 20 × 20 ft (400 sq ft) | $8,422 | $12,814 | $18,905 |
What makes a deck in Phoenix cost what it does
Summer surfaces get extremely hot, so shaded or light-coloured decks are the norm, and caliche can slow digging.
Labour here runs 2% above the Arizona average, so a pressure-treated 12×16 that averages $4,117 across Arizona comes to about $4,075 in Phoenix. Intense UV and 110°F summers bleach wood grey in a single season and make dark composite too hot to walk on barefoot. In the low desert decks are often shaded or built low; at elevation, frost and snow matter again.
Footings
Footings in Phoenix go about 12 inches deep, which costs roughly $128 per 12 inch footing installed. A 12×16 deck needs about 3. Size them with the deck footing calculator.
Deck permits in Phoenix
Permits are issued by the City of Phoenix Planning & Development. Phoenix permits attached and elevated decks; many HOAs also require design approval before a permit is issued. Typical fees run $150–$500. For the state rules that sit behind the local ones, see deck cost in Arizona.
Choosing decking in Phoenix
Composite adds about $5,032 to a 12×16 deck here over pressure-treated. A light-coloured, heat-mitigating composite holds up to UV far better than wood, which needs refinishing almost every year here. Run the numbers for your deck in the composite vs wood calculator.
Best time to build
October to April in the low desert; May to September at Flagstaff elevation.
Frequently asked questions
How much does a deck cost in Phoenix?
A 12×16 ft deck in Phoenix costs about $4,075 in pressure-treated pine, $6,183 in cedar and $9,107 in composite, installed. That is $19–$25 per square foot for pressure-treated and $42–$55 for composite.
Is building a deck in Phoenix more expensive than elsewhere in Arizona?
A typical deck in Phoenix runs right in line with the Arizona average and right in line with the US average, mainly because of local labour rates. Summer surfaces get extremely hot, so shaded or light-coloured decks are the norm, and caliche can slow digging.
Do I need a permit for a deck in Phoenix?
Permits are issued by the City of Phoenix Planning & Development. Phoenix permits attached and elevated decks; many HOAs also require design approval before a permit is issued. Budget roughly $150–$500 for the permit, more if drawings by a design professional are required.
How deep do deck footings have to be in Phoenix?
About 12 inches. Each 12 inch footing at that depth costs roughly $128 installed, and a 12×16 deck needs about 3. Always confirm the required depth with the City of Phoenix Planning & Development before digging — the footing inspection happens before any concrete goes in.
Should I choose composite or wood for a deck in Phoenix?
Composite adds about $5,032 to a 12×16 deck in Phoenix but removes staining every two to three years. A light-coloured, heat-mitigating composite holds up to UV far better than wood, which needs refinishing almost every year here.
Price the rest of the project
Figures are planning estimates built from national installed prices adjusted for Arizona and Phoenix labour, materials and footing depth. Get two or three itemised local quotes. Method.