Deck Building Cost in Portland (2026)
Average cost in Portland
$5,500 – $55,000
$40 – $110 per sq ft
In Portland, the average is $21,768 and most projects cost between $5,500 and $55,000, or about $40 – $110 per sq ft. Prices are before tax and based on 11 sources.
Cost Breakdown
ItemizedSkilled installation and framing
45%
Decking boards, joists, and hardware
40%
City of Portland structural permits
6%
Grading and old deck removal
5%
Plans and seismic compliance
4%
None at 0%
📋What's Included
ScopeTypically Includes
- Pressure-treated lumber
- Concrete footings
- Railing system
- Stairs (1 set)
- Hardware & fasteners
- Labor
Typically Excludes
- Composite or hardwood decking
- Built-in seating or planters
- Pergola or roof
- Lighting
- Permits
Based on a standard 200 sq ft pressure-treated wood deck.
🧮Estimate your project
LiveYour estimate in Portland
Likely range $9,796 – $47,890
- Labor45%$9,796
- Materials40%$8,707
- Permits and Fees6%$1,306
- Site Prep and Demolition5%$1,088
- Design and Engineering4%$871
Pressure-treated Wood
$21,768
Cedar
$29,583
Composite
$37,397
Hardwood (Ipe)
$51,072
Calibrated to 11 researched sources for Portland. Before tax. Real quotes vary with site conditions.
📈Price Momentum
Year-over-year~1 year ago
$20,440
Today
$21,768
Deck Building in Portland is ↑ 6.5% compared to roughly a year ago — about $1,329 more on the average project.
Comparison derived from the year-over-year change rate, not a month-by-month price index. We don't store historical snapshots yet — when we do, this will become a real time series.
🏢Top Deck Build Contractors in Portland
Verified providersGrand Decks - Portland, OR
3055 NW Yeon Ave Suit #643, Portland, OR 97210, USA
110 reviews
Cascade Fence & Deck
6529 NE Sandy Blvd Ste 207, Portland, OR 97213, USA
221 reviews
Next Level Decks and Exteriors
8725 SW Chestnut St, Tigard, OR 97223, USA
93 reviews
Provider data sourced from public business directories. Ratings and reviews are public and may change. LookupCost is not affiliated with listed providers.
💬What People Actually Paid
Community❓Common Questions
In Portland, a building permit is required if the deck's walking surface is more than 30 inches above the adjacent grade. Decks at or below 30 inches are generally exempt from structural permits, though zoning setbacks still apply.
Skilled labor rates for deck construction in the Portland metro area average approximately $55 per hour in 2026, which is roughly 12-15% higher than the national average due to local demand and cost of living.
Permit fees are based on project valuation. For example, a $15,000 deck project typically incurs approximately $850 to $1,100 in permit fees, which includes a mandatory 12% State of Oregon surcharge.
Due to high moisture levels, contractors recommend composite decking (like Trex or TimberTech) or naturally rot-resistant Western Red Cedar. Composite materials typically cost $35-$65 per sq ft installed but offer better long-term value in the Pacific Northwest.
📊Our Methodology
How we collect dataAggregated from 11+ verified web sources and cost databases
Licensed contractor estimates and regional cost guides
Government construction and labor statistics
Community-reported project costs and reviews
Last data collection: 1 months ago. Updates run weekly. All costs in USD.
About this data
Cost figures are estimates synthesized from public market data using AI research and refreshed regularly. Real project costs vary by scope, materials, contractor, and site conditions. Always get verified quotes from licensed contractors for your specific project.
Spotted bad data? Let us know — we'll review and update.