How much does deck building cost in Alaska?

A typical deck project in Alaska runs $10,100 to $40,300, adjusted for Alaska construction costs (well above the national average). Pressure-treated runs about $30–$60 per sq. ft.; composite $50–$95 per sq. ft.

Is your deck building quote in Alaska fair?

Compare the quote to the state-adjusted range on this page, make sure every line item in the "what's included" list appears in writing, and get at least two other bids. Home Project Copilot's free scan flags missing scope and vague terms in under a minute.

How much does a 12x24 deck cost in Alaska?

Pressure-treated lumber, installed at 12x24 (288 sq. ft.) typically runs $10,900 to $21,800 in Alaska. That is a $30–$60 per sq. ft. of deck rate from public cost guides, adjusted for Alaska construction costs. Access, demolition, repairs, and permits can add to it.

Alaska cost guide

Deck building cost in Alaska

In Alaska, deck building prices run well above the national average — whether you're in Anchorage, Fairbanks, or Juneau. Here's what a complete, permitted job should cost, and how to tell whether the quote in your hand is fair.

Typical Alaska range

$10,100 – $40,300

Pressure-treated runs about $30–$60 per sq. ft.; composite $50–$95 per sq. ft.

Included at this price: Footings, framing, decking, railing, stairs, and permits.

Alaska prices by project type

Project	Alaska range	Unit check
Pressure-treated wood deck	$8,800 – $27,700	Pressure-treated framing and decking runs about $30–$60 per sq. ft.
Composite or PVC deck	$15,100 – $50,400	Composite decking commonly runs $50–$95 per sq. ft. installed.
Deck repair, resurface, or railing	$1,900 – $15,100	Re-decking over sound framing commonly runs $20–$45 per sq. ft.
Patio or paver installation	$5,000 – $31,500	Paver patios commonly run $15–$40 per sq. ft. installed.

Reviewed 2026. Editorial benchmarks from public cost surveys (Zonda Media / Remodeling magazine, Houzz, Angi / HomeAdvisor), adjusted by a state construction-cost index. Not a bid, appraisal, or licensed estimating data.

What a common size costs in Alaska

Pressure-treated lumber, installed: $30–$60 per sq. ft. of deck, adjusted for Alaska construction costs.

Size	Alaska estimate
12x12 (144 sq. ft.)	$5,400 – $10,900
12x24 (288 sq. ft.)	$10,900 – $21,800
16x20 (320 sq. ft.)	$12,100 – $24,200
20x20 (400 sq. ft.)	$15,100 – $30,200

Per-unit rate from the public cost guides cited above, multiplied by size and the Alaska construction-cost index. Access, demolition, repairs, and permits can add to it — this is a benchmark, not a bid.

Red flags in Alaska deck building quotes

Footing depth, diameter, and frost-line compliance
Ledger attachment method and flashing
Joist size and spacing versus the decking material's requirement
Hardware: hangers, fasteners, and corrosion rating
Railing height, baluster spacing, and stair details

Commonly missing line items: ledger flashing, frost-depth footings, structural screws versus lag bolts, stair stringer spacing, grading and site restoration.

Already have a deck building quote in Alaska?

Upload it for a free red-flag scan — about 20 seconds. Full report with price position, missing scope, and negotiation questions: $12.

Free scan

Related cost guides

Review my deck building bid Roof replacement cost in Alaska Siding replacement cost in Alaska Kitchen remodel cost in Alaska Bathroom remodel cost in Alaska Window replacement cost in Alaska

Alabama Arizona Arkansas California Colorado Connecticut Delaware District of Columbia

Homeowners in Alaska can also read and write contractor reviews before choosing who to hire.