Cost to Build a Deck in Oregon (2026)
A 12×16 ft deck in Oregon runs about $4,515 in pressure-treated pine and $9,684 in composite, installed — 5% above the US average. Here is what moves that number in Oregon, with a calculator priced for the state.
Pressure-treated pine
$21–$27 /sq ft
Cedar
$28–$37 /sq ft
Composite
$45–$58 /sq ft
Deck cost calculator for Oregon
Priced with Oregon labour, material and footing-depth factors. Change any input and the estimate updates.
Estimated installed cost
$8,522 – $11,136
192 sq ft · about $50.44/sq ft
- Materials
- $6,040
- Labour
- $3,644
- Footings (18 in deep)
- 3 × about $148
- Frost-depth adjustment
- −$58
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.
Oregon deck cost by size and material
Mid-range installed prices for a standard-height deck attached to the house, including framing, footings at the local depth and hardware. Railing and stairs are priced separately in the main deck cost calculator.
| Deck size | Pressure-treated pine | Cedar | Composite |
|---|---|---|---|
| 10 × 10 ft (100 sq ft) | $2,324 | $3,147 | $5,016 |
| 12 × 12 ft (144 sq ft) | $3,372 | $4,557 | $7,248 |
| 12 × 16 ft (192 sq ft) | $4,515 | $6,096 | $9,684 |
| 16 × 20 ft (320 sq ft) | $7,467 | $10,102 | $16,082 |
| 20 × 20 ft (400 sq ft) | $9,372 | $12,666 | $20,141 |
What drives deck prices in Oregon
Labour
Labour is the biggest regional variable. Carpentry labour in Oregon runs 15% above the national level, so a composite 12×16 that averages $9,216 nationally comes to about $9,684 here. On pressure-treated decks labour is more than half the bill, so the regional gap is widest on the cheapest material.
Climate
West of the Cascades, long wet winters grow moss and algae; east of the mountains it is dry and cold.
Footings and frost depth
Footings in Oregon typically go 12–24 inches deep. At 18 inches each 12 inch footing costs roughly $148 installed, and a 12×16 deck needs about 3 of them — a saving of $58 against the 24 inch depth national prices assume.
Which decking makes sense here
Our pick for most Oregon homes: cedar. Western red cedar is milled locally, so it costs noticeably less than elsewhere and suits the region. Composite adds about $5,169 to a 12×16 deck over pressure-treated — see the full 20-year comparison in the composite vs wood calculator.
Permits and code in Oregon
The Oregon Residential Specialty Code applies statewide, and contractors must be CCB licensed. Footing depth is typically 12 to 18 inches in the Willamette Valley and deeper east.
Typical deck permit fees: $150–$600. Expect a footing inspection before concrete, a framing inspection before the decking goes down and a final. Estimate your fee with the deck permit cost calculator, and read our deck permit guide for what the drawings need to show.
Best time to build a deck in Oregon
June to September — the dry season west of the Cascades.
Deck cost in Oregon cities
- Portland — 12×16 composite about $9,887
Compare neighbouring states
- Washington — 12×16 pressure-treated about $4,706 (+8% vs US)
- California — 12×16 pressure-treated about $4,969 (+16% vs US)
- Idaho — 12×16 pressure-treated about $4,096 (−5% vs US)
- Nevada — 12×16 pressure-treated about $4,485 (+6% vs US)
Frequently asked questions
How much does it cost to build a deck in Oregon?
A typical 12×16 ft (192 sq ft) deck in Oregon costs about $4,515 installed in pressure-treated pine, $6,096 in cedar and $9,684 in composite. That is $21–$27 per square foot for pressure-treated and $45–$58 for composite — 5% above the US average.
Is a composite deck worth it in Oregon?
On a 12×16 deck composite costs about $5,169 more than pressure-treated up front. Western red cedar is milled locally, so it costs noticeably less than elsewhere and suits the region. Composite needs no staining, which saves a refinishing cycle every two to three years on wood.
Do I need a permit to build a deck in Oregon?
The Oregon Residential Specialty Code applies statewide, and contractors must be CCB licensed. Footing depth is typically 12 to 18 inches in the Willamette Valley and deeper east. Where a permit is required, fees typically run $150–$600. Under the model residential code, a freestanding deck under 200 sq ft and no more than 30 inches above grade that does not serve an exit door is often exempt — attaching it to the house removes that exemption.
How deep do deck footings need to be in Oregon?
Typically 12 to 24 inches depending on the part of the state. At about 18 inches, each 12 inch footing costs roughly $148 installed, compared with $167 at a 24 inch depth. Confirm the exact depth with your building department before digging.
When is the best time to build a deck in Oregon?
June to September — the dry season west of the Cascades. Booking a builder outside the spring rush often gets a faster start date and a keener price.
Is Oregon expensive for deck building compared with other states?
Oregon ranks 37 of 50 from cheapest to most expensive on our index. Carpentry labour runs 15% above the national level and materials right in line with it, which puts a typical deck 5% above the US average.
Price the rest of the project
How these figures are made: national installed prices per square foot, split into materials and labour and adjusted by a Oregon labour index (reasoned from BLS state carpenter wage data), a material and freight index, and the local footing depth. They are planning estimates — get two or three itemised local quotes. Method.