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Outdoor living

Deck Cost Calculator and Quote Estimator

Estimate deck cost per square foot and total project pricing by deck size, material, height, railing, stairs, resurfacing versus rebuild scope, framing and ledger repairs, footings, permits, demolition, and site access before comparing deck quotes from builders.

Starter planning range $6,000 - $28,000 Per project; final pricing depends on project conditions.

At a glance

Typical planning range $6,000 - $28,000

Per project before contractor-specific scope and site conditions.

Main cost drivers Deck size, decking material, deck height, and railing and stairs

These inputs move the estimate before local labor, access, permits, and project conditions.

Best next step Compare bids against the same assumptions

Ask contractors to separate included work, allowances, exclusions, and change-order rules.

Interactive estimate

Estimate your project cost

Use this deck cost calculator to estimate deck building costs for a new deck, replacement deck, resurfacing project, or wood patio-style platform. Pricing varies by square footage, deck cost per square foot assumptions, framing and ledger condition, decking material, railing, stairs, permits, height, footings, demolition, and site access.

Estimated range $6,000 - $28,000 Use this as a planning range, then compare contractor quotes against the same assumptions.
Project supplies to check View full supply checklist Product links may earn GetCosts.com a commission from qualifying purchases.

Project questions this estimate answers

Use these checkpoints to keep the estimate tied to the scope a contractor will actually price.

  • Deck cost calculator

    Start with square footage and material, then check height, railing, stairs, footings, ledger flashing, demolition, and access before comparing deck builder quotes.

  • Deck cost per square foot

    Use per-square-foot pricing only after separating pressure-treated wood, cedar, composite, PVC, elevated framing, railings, stairs, and site-prep assumptions.

  • Deck quote calculator

    Compare size, height, material, railing, stairs, footings, permits, demolition, and ledger flashing before accepting a deck builder quote.

  • Estimating deck cost

    Separate resurfacing safe framing, a ground-level wood platform, a new standard deck, and a tear-down rebuild so the estimate matches the real scope.

  • Deck cost estimate

    Confirm framing and ledger condition, joist repairs, footings, guardrail attachment, and site access before treating a deck estimate as quote-ready.

  • Deck building cost calculator

    Use square footage, decking material, height, railing, stairs, framing condition, and permits to compare deck builders on the same scope.

Project supplies

Price-check related tools, parts, fixtures, filters, safety items, and materials before you buy or review a bid.

View full supply checklist

Cost drivers to review

  • Deck size
  • Decking material
  • Deck height
  • Railing and stairs
  • Build or replace scope
  • Framing and ledger condition
  • Footings, permits, and site prep

How this estimate should work

  1. Estimate deck scope from square footage, deck cost per square foot assumptions, height, railing, stairs, build-versus-replace scope, framing and ledger condition, footings, permits, site prep, and the homeowner's material choice.
  2. Apply installed ranges for pressure-treated wood, cedar, composite, PVC, and premium deck materials.
  3. Separate a deck quote for resurfacing safe framing, building a new standard deck, tearing down and rebuilding an existing deck, or expanding the footprint so bids do not hide demolition or structural work.
  4. Check framing and ledger condition before comparing resurfacing, rebuild, or expansion bids because joist rot, stair stringer repairs, ledger flashing, lateral-load connectors, and guardrail attachment can change the real deck cost estimate.
  5. Adjust the range for ground-level wood patio-style platforms, elevated deck footings, beam spans, stair runs, structural complexity, permits, ledger flashing, engineering, slope, access, and local carpenter rates.
  6. Show a planning range and help quote-ready homeowners compare deck builder bids against the same materials, railing, stairs, framing repairs, footings, permits, and cleanup assumptions.

Cost examples

Lower-scope deck building $4,500 - $23,800

A planning example for smaller or simpler deck building work with easier access, fewer upgrades, and limited prep.

Typical deck building $6,000 - $28,000

A planning example around the starter range when deck size, decking material, and deck height are near the middle of the project.

Higher-scope deck building $7,200 - $37,800

A planning example for larger, upgraded, or harder-to-access deck building work with more site prep or coordination.

Deck building cost by decking material

Decking material Planning range
Pressure-treated wood $6,000 - $28,000
Cedar or redwood $8,100 - $37,800
Composite $9,300 - $43,400
PVC or premium composite $11,100 - $51,800

Deck building cost by deck size

Deck size Planning range
120 sq ft $2,250 - $10,500
200 sq ft $3,750 - $17,500
320 sq ft $6,000 - $28,000
500 sq ft $9,400 - $43,800
800 sq ft $15,000 - $70,000

Common questions

How much does deck building cost?

A typical deck building planning range is $6,000 - $28,000 per project. Final pricing depends on deck size, decking material, deck height, railing and stairs, local labor rates, access, permits, and project conditions.

What changes a deck building estimate the most?

The biggest changes usually come from project scope, especially deck size, decking material, deck height, railing and stairs. Contractor availability, code requirements, site access, disposal needs, and regional cost pressure can also move the final quote.

How should I compare deck building bids?

Ask each contractor to price the same scope, materials, timeline, cleanup, warranty, and permit assumptions. Then compare what is included, what is excluded, and how each quote handles surprises.

What should I enter in a deck cost calculator?

A useful deck cost calculator should account for deck size, decking material, height, railing, stairs, resurfacing versus new-build or rebuild scope, framing and ledger condition, footings, permits, demolition, and site access. Those inputs help compare deck quotes against the same project assumptions.

How should I use a deck building cost calculator before calling builders?

Start by entering measured deck square footage, decking material, height, railing and stair scope, build-versus-replace scope, framing and ledger condition, footings, permits, demolition, and site access. Then compare deck builder bids against those same assumptions, especially whether ledger flashing, disposal, cleanup, permits, and repair allowances are included.

How much does a deck cost per square foot?

For the default 320-square-foot deck, GetCosts.com uses a $6,000 - $28,000 planning range, or roughly $19 - $88 per square foot before contractor-specific site conditions. Size, material, height, railing, stairs, framing repairs, footings, permits, demolition, and access can move bids above or below that range.

Why do railing, stairs, and deck height change a deck cost estimate?

Raised and second-story decks usually need more framing, taller posts, guardrails, stair runs, landings, footings, and code details than a simple ground-level platform. Extensive railing or multiple stair runs can also add material, fastening, layout, and labor time, so bids that look similar per square foot may not cover the same work.

What should a deck cost estimate include?

A deck cost estimate should separate decking boards, framing, beams, joists, ledger flashing, lateral-load connectors, footings, posts, railing, stairs, fasteners, demolition, disposal, permits, site prep, cleanup, warranty, and any repair allowances for rot or unsafe existing framing.

Is deck resurfacing cheaper than rebuilding a deck?

Deck resurfacing is usually cheaper only when the existing framing, ledger, stairs, posts, and footings are confirmed sound. A full rebuild can cost more when bids include joist rot repairs, ledger flashing, guardrail or stair code upgrades, new footings, demolition, disposal, and layout changes.

Browse related cost guides when this project overlaps with another trade or quote.

Compare another planning range, bid worksheet, or supply checklist before you call contractors.

Compare contractor bids

Often included

  • Labor and standard materials for deck building.
  • Basic site preparation, cleanup, and disposal assumptions.
  • Standard contractor scheduling and project coordination.

May cost extra

  • Changes related to deck size, decking material, deck height, or railing and stairs.
  • Permits, code upgrades, access issues, repairs, haul-off, or special-order materials.
  • Scope changes discovered after the contractor inspects the site.

Confirm before hiring

  • Whether the bid is fixed-price, allowance-based, or subject to site conditions.
  • What is excluded, what could trigger a change order, and how surprises are priced.
  • Warranty terms, payment schedule, start date, and cleanup responsibilities.

When to request quotes

Use the estimate after you know deck size, decking material, deck height, and railing and stairs well enough to compare the same scope across contractors.

Good time to ask

  • You can describe deck size, decking material, deck height, and railing and stairs without guessing.
  • You have photos, measurements, or notes that show the current deck building scope.
  • You are ready to ask at least two contractors for the same included work, exclusions, warranty, and change-order rules.

Wait until you know more

  • The project scope may change after an inspection, repair decision, insurance review, or permit requirement.
  • You are still deciding between deck building options that would create different material, labor, or access needs.

Before you request quotes

Use these questions to describe your project clearly and compare contractor bids against the same assumptions.

Quote comparison worksheet
  • What is included in a deck building quote, and what would be billed separately?
  • How does deck size change labor, materials, disposal, or timeline?
  • How does decking material change labor, materials, disposal, or timeline?
  • How does deck height change labor, materials, disposal, or timeline?
  • How does railing and stairs change labor, materials, disposal, or timeline?
  • Which assumptions should stay the same when comparing deck building bids?