Enter a realistic size
Use the measurement or task count that most closely matches the work contractors will price.
Exterior cost planner
Deck Construction Cost Calculator
Plan a new ground-level or elevated residential deck. Adjust the project, market, finish, and complexity to build a useful early budget.
Planning dataUpdated July 2026US national ranges
01
Describe the project
Use approximate measurements for early planning. You can print a revised estimate later.
What this estimate assumes
- Stairs, railings, height, and foundation conditions affect price.
- Rates assume a professionally installed code-compliant deck.
Planning guide
Understand the range before you request quotes.
Plan a professionally installed deck using area, finish level, elevation, site complexity, and a construction contingency.
Example project300 sq ftDefault calculator starting point
Base unit range$30–$85Before market, finish, complexity, and contingency
Example planning range$9,900–$28,050US average, standard finish, typical complexity, 10% contingency
How to use the calculator
Turn a rough idea into a quote-ready starting point.
This is a planning tool, not a contractor bid. Use the range to define scope, compare like-for-like proposals, and identify the questions that could materially change the final price.
Adjust the project conditions
Choose the local cost level, finish, complexity, and contingency that reflect your actual plan.
Compare complete scopes
Enter contractor quotes and check whether each proposal includes the same materials, labor, permits, and cleanup.
What the planning range includes
- Typical framing and decking materials
- Standard footings and installation labor
- Basic rails where applicable
- Permit allowance and planning contingency
What can move the price
- Deck height, stairs, and railings
- Wood versus composite decking
- Footing and soil conditions
- Access, shape, and structural complexity
Items that often sit outside the first estimate
- Engineering requirements
- Ledger or house-attachment repairs
- Lighting, roofs, kitchens, and custom features
Common questions
Deck Construction cost calculator FAQ
How accurate is this estimate?
It is an early planning range based on project size and broad US cost factors. Actual quotes depend on local labor, exact specifications, access, existing conditions, permits, and contractor availability.
Why is the range wide?
The low and high values intentionally cover meaningful differences in finish quality, complexity, market pricing, and hidden scope. Narrow it by defining materials and included work before requesting bids.
How should I compare contractor quotes?
Compare written scope, quantities, product allowances, demolition, cleanup, permits, schedule, warranty, payment terms, and change-order rules—not only the total price.
Continue planning
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