Deck Building Cost in Chicago (2026)
Average cost in Chicago
US$4,061 — US$25,000
US$26 — US$52 per sq ft
Cost Breakdown
ItemizedDecking boards, framing, and hardware
45%
Professional installation and union rates
40%
Mandatory 42-inch deep concrete footings
10%
City fees and 10.25% Chicago sales tax
5%
Sales Tax at 6.25%
📋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 Cost
InteractiveEstimated Cost
US$6,520 — US$9,780
Based on 7 sources and market data for Chicago. Actual costs may vary depending on specific project requirements.
📈Price Momentum
Year-over-year~1 year ago
US$9,951
Today
US$10,697
Deck Building in Chicago is ↑ 7.5% compared to roughly a year ago — about US$746 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 Chicago
Verified providersThe Chicago Roof Deck
1126 N Dearborn St #17, Chicago, IL 60610, USA
47 reviews
Porch & Decks By Adam
2723 N Seminary Ave #22, Chicago, IL 60614, USA
45 reviews
Vista Porch Builders & Contractors
21 E Chestnut St Apt 44, Chicago, IL 60611, USA
38 reviews
Unique Deck Builders
172 Skokie Valley Rd, Highland Park, IL 60035, USA
77 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
Yes, in Chicago, a permit is required for any deck that is more than 30 inches above the ground or exceeds 200 square feet in area. Permit fees typically range from $100 to $500 depending on the project's complexity.
Chicago building codes mandate 42-inch deep frost footings to prevent shifting during freeze-thaw cycles. Additionally, railings are required for any deck surface higher than 30 inches above grade.
Chicago has one of the highest sales taxes in the U.S. at 10.25%. This applies to all material purchases, which can add over $1,000 to the budget of a premium composite deck project.
While pressure-treated wood is cheaper ($26-$35/sq ft), composite is highly recommended for Chicago's 40-60 annual freeze-thaw cycles. Composite costs more upfront ($45-$75/sq ft) but resists the rot and warping common in the local climate.
📊Our Methodology
How we collect dataAggregated from 5+ 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: 2 weeks 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.