How Much Does a Deck Cost in Northern Virginia? 2026 Price Guide

Loudoun Decks 2026 quoted prices: a new open deck was about $61–$102 per sq ft in recent written quotes, most around $64–$68 per sq ft. Those are quoted prices, not guarantees. The written estimate after a site visit is the only project price.

Loudoun Decks 2026 quoted prices

These figures come from Loudoun Decks' recent written quotes in Northern Virginia (September–October 2026). They are quoted prices, not guarantees. The written estimate after a site visit is the only project price.

A new open deck was about $61–$102 per sq ft in our recent quotes, most around $64–$68 per sq ft. Examples: 192 sq ft at $11,684 (about $11,700); 240 sq ft at $16,000 and 304 sq ft at $20,758 (about $16,000–$21,000); 528 sq ft at $35,615 and 627 sq ft at $40,000–$42,869 (about $35,600–$42,900). A 16×12 with two landings and 13 steps was quoted at $19,654. A 264 sq ft TimberTech Terrain deck with bronze railings was quoted at $23,932 (about $91 per sq ft). Stairs and landings, premium composite (for example TimberTech Terrain), and metal railings push toward the top of that range.

External note

Deck pricing in Northern Virginia in 2026 spans a wide range — a basic pressure-treated wood deck for a modest backyard costs very differently than a multi-level composite deck with a pergola and built-in lighting. Understanding what drives cost, what you can control, and what reasonable market pricing looks like will help you evaluate bids accurately and avoid both overpaying and choosing a contractor who is cutting corners.

The quoted prices above are from Loudoun Decks' recent written quotes in Northern Virginia (September–October 2026). They are not a guarantee for a different size or scope.

Deck Cost by Size: Recent quotes, not invented totals

The most useful way to think about deck cost is cost per square foot of deck surface area — the total finished area including stairs and landings when those are in the quote.

Under 200 sq ft: a 192 sq ft wood deck with no stairs was quoted at $11,684 (about $61 per sq ft).

200 to 400 sq ft: recent quotes include 240 sq ft at $16,000 (about $67 per sq ft), 264 sq ft TimberTech Terrain with bronze railings at $23,932 (about $91 per sq ft), 304 sq ft at $20,758 (about $68 per sq ft), and 327 sq ft at $31,391 (about $96 per sq ft).

400 to 600 sq ft: this quote set does not include a deck in that exact band. Nearby quotes were 304 sq ft at $20,758 and 528 sq ft at $35,615 (about $67 per sq ft).

Over 600 sq ft: a 627 sq ft deck was quoted at $40,000–$42,869 (about $64–$68 per sq ft). This quote set does not include an 800 sq ft open deck.

A written estimate is the project price. It can include design, permit, framing, decking, railing, stairs, and cleanup. Pergolas, built-in seating, outdoor kitchens, and electrical work are separate scope when they are not in that estimate.

Deck Cost by Material: The Biggest Variable

Pressure-treated pine is the lowest upfront cost. It requires staining or sealing every 2 to 3 years to maintain appearance and prevent rot, adding ongoing maintenance cost. Lifespan with proper maintenance: 15 to 25 years.

Composite decking (Trex, TimberTech, AZEK) costs more upfront than pressure-treated in many projects, and it requires less routine staining. Manufacturer warranty terms are in the product documents. Loudoun Decks' workmanship coverage is in the written workmanship warranty terms. Over a 20-year ownership horizon, composite is often the lower total cost option when maintenance labor and materials are factored in.

Cedar and redwood sit between pressure-treated and composite in cost. They offer natural beauty and better rot resistance than pine, but are increasingly difficult to source in high-grade, clear-grade stock and are not commonly specified for new decks in Northern Virginia as of 2026.

Hardwood (Ipe, Cumaru, Tigerwood) commands a premium — the amount in a written estimate per linear foot for material alone. Hardwood decks are exceptionally durable and beautiful but require annual oiling and are sensitive to installation technique. Labor costs are higher due to pre-drilling requirements.

What Drives Cost Up in Northern Virginia

Elevated decks and second-story decks. When a deck is more than 3 to 4 feet off the ground, the structural framing cost increases significantly. Posts are longer, beams are larger, and bracing requirements are more stringent. Second-story decks can cost 25 to 40 percent more per square foot than grade-level decks of the same size.

Complex shapes. A rectangular deck is the most efficient to build. Angled corners, curves, multi-level changes, and wraparound configurations all increase both material waste and labor hours.

Stairs. A single staircase of 6 to 8 steps is priced in a written estimate for composite construction. Multiple stair locations, curved stairs, or wide monumental stairs multiply this cost.

Railing type. Code-compliant basic composite railing is priced in a written estimate per linear foot installed. Cable railing systems are priced in a written estimate per linear foot. Glass panel railing can exceed a written estimate per linear foot. Railing cost is a significant portion of total budget on smaller decks.

Site conditions. Sloped lots require more structural framing. Limited access (narrow side yards, fenced properties, low overhead clearance) adds labor time. Proximity to property lines that require structural setback adjustments can affect design options.

Permit and HOA requirements. All Northern Virginia decks over certain sizes require permits. Permit fees, drawing preparation, and inspection coordination are typically included in contractor pricing — but confirm this with your contractor. HOA-governed communities may require specific materials or colors that affect material cost.

What You Can Control to Manage Cost

Choose rectangular over complex shapes for the same usable square footage at lower cost.

Select composite from the mid-range product tier rather than the premium tier — the functional difference is modest, but the price difference per linear foot can be the amount in a written estimate.

Specify a single stair location rather than multiple access points.

Get three bids from licensed Class A contractors. In Northern Virginia, bids on the same project scope commonly vary by 15 to 25 percent. The lowest bid is not always the best value — verify what is and is not included.

Plan your project in fall or winter for a spring build. Many contractors offer off-season scheduling incentives, and material lead times are shorter outside the peak spring/summer season.

What a Typical Project Looks Like in 2026

A 300-square-foot composite deck in Ashburn or Leesburg — rectangular, single level, standard railing, one staircase, standard site conditions — currently runs approximately the amount in a written estimate fully installed with permit, including Trex Transcend or TimberTech Legacy material.

The same project in pressure-treated wood runs approximately the amount in a written estimate.

A 500-square-foot composite deck with a pergola, two stair locations, cable railing, and lighting is priced in a written estimate.

Getting an Accurate Estimate

Online deck cost calculators provide rough estimates, but accurate pricing requires a site visit — slope, access, HOA requirements, existing structure condition, and site-specific conditions all affect cost in ways a calculator cannot capture.

LDN Decks provides free on-site estimates across Loudoun and Fairfax counties. Our estimates are detailed line-item proposals, not ballpark ranges — you see exactly what you are getting before committing.

Get a Free Deck Estimate

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Related: composite deck cost in Northern Virginia · Trex Deck Cost Guide · 400 sq ft Deck Cost · Deck Cost Calculator · New Deck Services

The Loudoun Decks 2026 quoted prices in this article come from recent written quotes (September–October 2026). They are quoted prices, not guarantees. A written estimate after a site visit is the only project price.