Tip 1
Permits and footings: most jurisdictions require a permit for an attached or elevated deck, which adds plan-check and inspection fees on top of construction.
Free deck cost estimator
Deck Cost Calculator
Get a fast planning range for a new deck by size, material, and features. Composite decks cost more up front than pressure-treated wood but need far less upkeep — this tool shows the spread so you can budget before you talk to a builder.
Turn your estimate into a real quote
A calculator gets you a ballpark. An exact price comes from a contractor who sees the property. Share your ZIP and project details and we'll check local availability, then connect you with one independent deck builder — no obligation, and your details aren't blasted to a dozen companies.
- ✓ One introduction, not a bidding free-for-all
- ✓ Local coverage checked by your project ZIP code
- ✓ Free to request; the contractor prepares the estimate
Request a decking estimate
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✓ No-cost request✓ Local coverage check✓ One introduction
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Decking materials compared
Installed cost per sq ft in Northern California, and what you're trading off. Ranges span $30–$130 per sq ft depending on the material and your project.
| Material | Installed / sq ft | Notes |
|---|---|---|
| Pressure-treated wood | $30–$55 | Lowest up-front cost; needs staining/sealing every 2–3 years. |
| Cedar / redwood | $40–$70 | Natural rot resistance and looks; still needs periodic sealing. |
| Composite (Trex-class) | $50–$90 | Low-maintenance boards over a wood frame; popular mid-range choice. |
| Capped composite / PVC | $75–$130 | Premium, fade- and stain-resistant; longest low-maintenance life. |
What drives decking cost
- Deck size and height above grade
- Decking material — pressure-treated, cedar/redwood, or composite
- Railings, stairs, and built-in features
- Footings and structural framing
- Demolition of an existing deck
- Permits and setback requirements
Before you budget
Tip 2
Framing is hidden cost: the substructure — posts, beams, joists, and hardware — is often 40–50% of a wood deck's price even though you never see it.
Tip 3
Composite vs. wood over time: composite costs more to install but avoids repeated staining, sealing, and board replacement, which can close the gap over 10–15 years.
Homeowner planning library
Plan the project, not just the price
Deck cost calculator
Estimate a planning range by size, decking material, railings, and stairs before you request a bid.
Read the guide →How to compare contractor bids
Normalize scope, allowances, exclusions, schedule, payments, and warranty before comparing totals.
Read the guide →Decking cost calculator FAQs
How accurate is this decking cost calculator?
It gives an educational planning range based on typical Northern California installed pricing — not a quote. Your actual price depends on site conditions, access, design details, and material grade. Use it to set a budget, then request an estimate from a local independent deck builder for a firm number.
What does the estimate include?
The range reflects installed cost — materials and labor together, all-in per sq ft — plus any add-ons you toggle on. It does not include permit fees, which vary by jurisdiction, or unusual site work your contractor may identify on-site.
Why is the range so wide?
Renovation pricing genuinely spans a wide band. Material grade, height, access, prep, and finish level each move the number. Showing the honest spread is more useful than a single figure that turns out wrong once a contractor sees the property.
Do the contractors build composite decks?
Yes. Independent deck builders commonly work with composite decking as well as wood. Note your material preference in the request.
Can I request an estimate for deck repair or resurfacing?
Yes. Deck repair, board replacement, resurfacing, and railing work are supported alongside new deck construction.
This calculator provides general educational cost ranges for planning only and is not a quote, appraisal, or contractor estimate. Local Renovation Pros is a contractor-matching platform, not a licensed contractor, and does not set prices. Actual pricing is provided by independent contractors after reviewing your property.