Deck replacement typically costs $8,000-$30,000, with many standard projects averaging about $16,000. A deck replacement cost estimator should account for deck size, decking material, framing condition, demolition, labor, and local permit requirements.
| Item | Low | Average | High | Notes |
|---|---|---|---|---|
| Complete replacement | $8,000 | $16,000 | $30,000 | Common 300-square-foot deck, standard access |
| Installed cost per square foot | $25 | $53 | $100 | Varies with material and structural work |
| Demolition and disposal | $600 | $1,500 | $3,500 | More for large or difficult-to-access decks |
| Permit and inspection | $100 | $500 | $1,500 | Local rules and project scope determine fees |
Typical replacement prices by deck size and material
For a 300-square-foot deck with standard access and no major foundation changes, pressure-treated wood commonly totals $8,000-$15,000. Cedar or redwood may cost $12,000-$22,000, while composite decking often brings the total to $15,000-$30,000. Larger decks, stairs, railings, and upgraded framing can raise the bill beyond these ranges.
Installed pricing often runs $25-$50 per square foot for pressure-treated wood, $35-$70 for cedar or redwood, and $45-$85 for composite. Premium composite boards and complex designs can exceed $100 per square foot. Assumptions: U.S. midrange labor, ordinary ground access, standard railing, and no major code-related reconstruction. For an initial estimate, multiply the deck area by the installed rate for the selected material, then add demolition, permits, and any structural work.
What demolition, framing, and decking add to the quote
Contractors may quote one installed total or separate labor and materials. Comparing line items helps reveal whether the proposal includes removal, new framing, railings, stairs, fasteners, and cleanup. The figures below are typical allowances, not fixed national rates.
| Quote component | Low | Average | High | Typical basis |
|---|---|---|---|---|
| Decking materials | $5,000 | $9,000 | $18,000 | $15-$60 per sq ft, material dependent |
| Labor and installation | $3,000 | $6,000 | $12,000 | $50-$100 per crew-hour |
| Framing and footings | $1,000 | $3,000 | $8,000 | Repair or rebuild as required |
| Removal and disposal | $600 | $1,500 | $3,500 | Deck size, material, and hauling access |
| Permits and inspections | $100 | $500 | $1,500 | Local jurisdiction and project scope |
Line items may overlap: some contractors include framing, fasteners, or demolition in a combined labor charge. Ask whether the estimate includes taxes, delivery, debris hauling, and a final inspection. A written, itemized quote makes competing bids easier to compare on the same scope.
How square footage, height, and framing change the estimate
Area is a major pricing driver, but shape and height matter too. A simple 200-square-foot rectangle may cost roughly $5,000-$14,000, while a 400-square-foot deck can reach $10,000-$34,000 depending on materials and condition. These are planning ranges; stairs, multiple levels, and railings can push either project higher.
Decks more than 30 inches above grade commonly need guardrails under local code, adding materials and installation. A deck with 10 or more stairs may require extra framing and labor. If joists are spaced too widely for the chosen composite boards, framing changes may be necessary; replacing damaged joists or footings can add $1,000-$8,000 or more. Hidden framing deterioration is one of the biggest reasons a preliminary estimate differs from the final quote.
Why regional labor rates shift deck replacement prices
Labor, disposal fees, and permit costs vary by market. Dense urban areas and high-cost coastal metros may run 15%-30% above typical national pricing, while some rural markets may come in 10%-20% below it. These differences are not universal; contractor availability, local demand, and material delivery distances also affect bids.
For a basic 300-square-foot replacement priced near $16,000 in a mid-cost market, a high-cost city could produce a similar-scope quote of about $18,400-$20,800. A lower-cost rural quote might fall near $12,800-$14,400. Use local estimates rather than applying a national average as a guaranteed price.
How many labor hours a 300-square-foot deck may take
A straightforward replacement may take a small crew about 4-8 working days, including removal, framing, decking, and cleanup. A three-person crew working 8-hour days represents roughly 96-192 crew-hours. Complex stairs, elevated framing, weather delays, or difficult access can extend the schedule.
Some contractors price labor by project; others use an hourly or crew rate. A planning calculation is shown here: For example, 120 crew-hours at an effective $60-$100 per crew-hour implies $7,200-$12,000 in labor before considering how a contractor packages overhead and materials. Confirm whether quoted hours refer to one worker or the entire crew.
Three deck replacement estimates with different specifications
| Example | Specifications | Estimated total | Price per sq ft |
|---|---|---|---|
| Small wood rebuild | 200 sq ft, pressure-treated boards, basic railing, 80-120 crew-hours | $6,000-$12,000 | $30-$60 |
| Standard family deck | 300 sq ft, composite boards, stairs, 120-180 crew-hours | $15,000-$27,000 | $50-$90 |
| Large elevated project | 500 sq ft, composite, extensive railing, framing repairs, 200-300 crew-hours | $30,000-$55,000 | $60-$110 |
These examples assume ordinary material availability and include typical labor and removal; the elevated project allows for structural repairs. Use the specifications, not only the total, when comparing an estimate with these scenarios.
Repairing boards versus replacing the whole deck
Replacing a few damaged boards may cost about $300-$1,500, depending on matching material, access, and minimum service charges. New surface boards over sound framing may cost $15-$45 per square foot, while a full replacement commonly costs $25-$100 per square foot. A surface-only upgrade is unsuitable if joists, posts, or footings are unsafe or deteriorated.
Ask the contractor to inspect the framing and identify which components can remain. If repairs are limited and the structure is sound, replacing boards or railings can defer a larger expense. Do not choose a lower-cost resurfacing bid unless it clearly documents the condition of the structure below the boards.
Ways to control the final deck replacement bill
Keep the footprint and layout simple, retain sound framing where permitted, and choose standard-width boards rather than specialty profiles. Pressure-treated lumber generally costs less upfront than composite; composite may reduce staining and sealing upkeep but costs more initially. Avoid adding built-in benches, lighting, or multiple stair runs unless they serve a clear need.
Request at least three itemized quotes with the same dimensions, materials, railing height, and removal requirements. Ask contractors to price optional upgrades separately and identify allowances that could change after demolition. Scheduling outside peak local building demand may improve availability, although weather and contractor calendars vary. The most reliable savings come from limiting scope and comparing bids that include the same work.