Building a deck typically costs $25-$65 per square foot installed, with a national average near $40. Deck size, wood or composite decking, site access, stairs, railings, and local labor rates are the biggest price drivers.
| Item | Low | Average | High | Notes |
|---|---|---|---|---|
| Installed deck | $25 per sq ft | $40 per sq ft | $65 per sq ft | Basic pressure-treated to premium composite |
| 200-sq-ft deck | $5,000 | $8,000 | $13,000 | Standard ground-level project |
| Decking boards only | $3 per sq ft | $8 per sq ft | $15 per sq ft | Material grade and type affect price |
| Labor | $15 per sq ft | $25 per sq ft | $40 per sq ft | More for elevated or complex builds |
What a Typical 200-Square-Foot Deck Costs
A standard 200-square-foot deck often totals $5,000-$13,000 installed, or about $8,000 for a straightforward project using pressure-treated framing and decking. A larger 300-square-foot build may run $7,500-$19,500 before unusual site work or premium features. Installed pricing commonly falls between $25 and $65 per square foot.
The estimate assumes a new, simple rectangular deck with standard footings, ordinary access, and no roof or outdoor kitchen. Wood prices sit toward the lower end; composite boards, railings, stairs, and elevated framing push the total upward. Assumptions: U.S. average labor, standard materials, normal access, and no major demolition.
How Framing, Boards, and Railings Shape the Quote
Contractors typically price the project as a package, but separating materials and labor helps explain differences between bids. The ranges below are approximate portions of a typical 200-square-foot job; a small project can cost more per square foot because setup and delivery are spread over fewer boards.
| Quote component | Low | Average | High | Typical basis |
|---|---|---|---|---|
| Framing and footings | $1,200 | $2,400 | $4,000 | Posts, joists, connectors, concrete |
| Decking boards | $600 | $1,600 | $3,000 | $3-$15 per sq ft |
| Labor | $3,000 | $5,000 | $8,000 | Layout, framing, decking, finish |
| Railings and stairs | $0 | $1,200 | $3,500 | Scope and material dependent |
| Delivery and disposal | $200 | $600 | $1,500 | Hauling, debris, site access |
These are planning ranges, not fixed line items; contractor overhead, permits, and taxes may be included in other quote categories. Ask whether the written estimate includes railings, stairs, fasteners, delivery, and cleanup.
Why Deck Height, Footings, and Shape Change the Price
Height is a major cost driver because a deck raised more than 30 inches above grade generally needs longer posts, bracing, and protective guards; local code requirements vary. A second story or steep slope can add roughly 10%-25% compared with an accessible ground-level build. A simple rectangle is faster to frame than curves, multiple corners, or built-in seating.
Size also affects the unit price. A 100-square-foot deck may cost $35-$75 per square foot because stairs, mobilization, and minimum labor charges remain substantial. A 300-square-foot rectangle may land closer to $25-$55 per square foot. Soil conditions matter too: rocky ground, poor drainage, or deep frost requirements can raise footing costs by hundreds or several thousand dollars. Deck height and foundation conditions can move a quote beyond the board-material budget.
How Many Labor Hours Does a Deck Build Take?
A basic 200-square-foot deck may require a two- or three-person crew for about 4-8 working days, or roughly 65-150 crew hours. Labor often works out to $15-$40 per square foot, while some contractors quote $50-$100 per worker-hour for specialized or difficult work.
Stairs, guardrails, demolition, and obstructed access add time. Weather can also delay footing and framing work, particularly when concrete or treated lumber needs suitable conditions. Compare the stated crew size and included work, not just the labor total.
Pressure-Treated Wood, Cedar, or Composite Boards
Pressure-treated decking is usually the least expensive material, while cedar and redwood cost more and composite boards often carry the highest upfront price. Approximate installed ranges are $25-$45 per square foot for pressure-treated wood, $35-$60 for cedar or redwood, and $40-$75 for composite. Premium capped composite or complex board patterns may exceed those ranges.
Wood generally needs periodic cleaning, sealing, or staining; composite usually costs more initially but avoids routine staining. Framing and railing material still matter, so an all-composite surface on a treated-wood frame is not priced like a fully upgraded system. Compare the complete installed assembly rather than board prices alone.
Three Deck Quotes for Common Backyard Projects
| Project | Scope and rate | Estimated total |
|---|---|---|
| Small treated-wood platform | 120 sq ft at $35-$50 per sq ft; about 45-75 crew hours | $4,200-$6,000 |
| Mid-size cedar deck | 200 sq ft at $40-$60 per sq ft; about 70-120 crew hours | $8,000-$12,000 |
| Elevated composite deck | 300 sq ft at $55-$80 per sq ft; stairs and railings included | $16,500-$24,000 |
These examples assume typical access and no roof, demolition, or major grading. Use project-specific quotes to replace these broad planning estimates.
How Location and Site Access Affect Deck Pricing
Labor and permitting costs vary by market. Dense metro areas and high-cost coastal markets may run 10%-25% above national averages, while some rural areas may be 5%-15% lower; travel distance and limited contractor availability can erase rural savings. Local code, frost depth, and wind exposure can also change footing and railing specifications.
Delivery fees may rise when the yard is difficult to reach or materials must be carried by hand. Permits and inspections commonly add $100-$1,000 or more, depending on jurisdiction and project scope. Confirm permit fees and site-specific requirements before comparing totals.
Which Scope Changes Can Lower the Deck Estimate?
A simple rectangular shape, standard board widths, and one straight stair run reduce cutting and framing time. Keeping the deck close to grade may avoid some guardrail and structural requirements, subject to local code. Choosing pressure-treated decking instead of premium composite can reduce the initial material budget, though upkeep costs differ.
Request itemized bids from at least three contractors using the same dimensions, railing length, stair count, and material grade. If an existing structure is involved, compare repair pricing with full replacement; damaged framing or footings may make a surface-only fix short-lived. Control the plan and compare matching scopes before trimming structural requirements.