Roof Deck Replacement Cost Calculator
Use this free roof deck replacement cost calculator to get an instant estimate by deck area, material (OSB or plywood), roof pitch/access, and location. Typical installed cost is about $4–$12 per sq ft. Get a materials, labor, and low, average, and high estimate below.
How much does roof deck replacement cost?
Roof deck replacement typically costs $4–$12 per square foot installed, or roughly $8,000–$24,000 for a 2,000 sq ft roof. Cost depends on deck area, material (OSB vs plywood), roof pitch and access, and location. Get 2–3 local quotes for an accurate price.
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Important Disclaimer:
These estimates are based on current market data and average costs. Actual costs may vary depending on your location, specific materials chosen, contractor rates, and project complexity. We recommend getting multiple quotes from local contractors for the most accurate pricing.
Average Roof Deck Replacement Cost
National averages for roof deck replacement range from about $4 to $12 per square foot installed, depending on material and access. Below are typical ranges by project size and by material.
Cost by project size
Typical total cost ranges (OSB, moderate access, medium cost area)
| Deck area | Estimated cost |
|---|---|
| 1,000 sq ft | $4,000–$10,000 |
| 1,500 sq ft | $6,000–$14,000 |
| 2,000 sq ft | $8,000–$18,000 |
| 2,500 sq ft | $10,000–$22,000 |
| 3,000+ sq ft | $12,000–$28,000+ |
Cost by material (per sq ft)
Material + labor, installed
| Material | Per sq ft (installed) |
|---|---|
| OSB | $4–$7 |
| Plywood | $5–$9 |
| Other / contractor-specified | $4.50–$8 |
What Affects Roof Deck Replacement Cost?
Deck area, material choice, roof pitch and access, location, and extent (full vs section) drive most of the variation.
- Deck area — Larger area means higher total cost; per-sq-ft may be slightly lower on big jobs.
- Material — OSB is typically $2–$3 per sq ft material; plywood $3–$4. Labor is similar for both.
- Roof pitch / access — Steep or difficult access adds labor and time; easy access reduces cost.
- Location — Labor and material rates vary by region and market.
- Extent — Full deck replacement is standard during reroof; section replacement can have higher per-sq-ft due to smaller scope.
- Disposal — Removal and disposal of old deck and sometimes roofing add to labor and fees.
Data from contractor & material pricing
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Used for planning
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Roof Deck Replacement Cost FAQs
Common questions about roof deck replacement cost, when to replace, OSB vs plywood, and cost per sq ft.
Get a roof deck replacement quote
Use your estimate to compare quotes. Save or share your results above, then contact licensed roofers in your area for an accurate price for deck removal and replacement.
Related Cost Calculators
Disclaimer: These estimates are for planning only and are based on national averages and typical deck replacement scenarios. Actual costs depend on your location, exact material and thickness, roof pitch and access, contractor rates, and disposal. Always get 2–3 local quotes before committing to a roof deck replacement project.