A deck in Greater Seattle is a year round investment, but only if the material handles nine months of Pacific Northwest moisture.
The deck installation cost that Seattle homeowners budget for depends heavily on material choice. Cedar, composite, and Tigerwood perform differently in our climate and carry different price tags. This guide breaks down what each material costs, what drives the cost of installing a deck up or down, and what that buys you over the next twenty years.
How much does it cost to install a deck in Greater Seattle? In the Seattle area, the cost of installing a deck typically runs $40 to $75 per square foot, depending on material and design. National averages run lower, but Seattle's labor rates and permit costs push local pricing 20 to 40 percent above the national figure.
A few quick numbers to frame a realistic budget:
💡 Pro Tip: Ask any contractor for a per square foot breakdown of material versus labor expenses, which gives you a more accurate estimate for your own deck budget.
Before comparing Contour Fence's three premium materials, it helps to know where pressure treated wood and other common options fall on the price scale.
These are material only figures. Contour Fence's three premium lines sit above these baseline decking material costs once labor and finish work are added to the total cost.
Port Orford Cedar is a premium western cedar with a tighter grain and higher natural oil content than standard cedar, naturally rot resistant and the classic choice for Pacific Northwest decks.
Cedar deck cost per square foot installed generally runs $30 to $45 in the Seattle area. The cost of installing a cedar deck varies based on board grade, layout complexity, and site conditions like slope or access. This cost to install a cedar deck sits at the approachable end of the premium range compared to composite or Tigerwood.
Armadillo Composite decking is a premium composite decking material built to resist fading and scratching. Like most composite materials, it blends wood fiber with recycled plastic, typically carrying a 25 year warranty that removes the maintenance cycle almost entirely.
Composite decking cost generally lands between $28 and $45 per square foot installed. Homeowners researching the cost of Trex decking installed are usually comparing a similar tier of premium composite material, since Trex is one of the most recognized composite brand names nationally. Contour Fence installs Armadillo Composite as its own premium line, which competes directly against the typical cost of Trex decking installed in that same category, and the broader cost of installing decking in composite generally sits above cedar but below Tigerwood on a per square foot basis.
Tigerwood is a Brazilian hardwood known for a striking reddish brown grain, the most visually distinctive material of the three, and extremely dense and hardwearing.
Cost of Tigerwood decking typically runs $40 to $65 per square foot installed, reflecting the material's density and import cost. Tigerwood requires oiling rather than painting, keeping the grain visible while protecting the wood.
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Comparing composite and wood decking on cost, maintenance, durability, and lifespan usually comes down to how long you plan to stay in the home.
When you weigh the two side by side on durability, maintenance, cost, and appearance, composite's higher upfront cost often pays back over time. Seattle's wet climate makes an annual staining and sanding cycle a real recurring expense for wood decks that composite avoids entirely.
Material is only part of the cost to build a deck. Your total also shifts based on several other factors, whether you are building new or installing decking over an existing structure.
Labor cost to build a deck per square foot tends to drop as the deck gets larger, since fixed costs spread across more square footage. A small, oddly shaped deck often costs more per square foot than a larger rectangular one.
Some installers offer underdeck drainage systems that redirect runoff from an elevated deck, creating dry storage or covered patio space underneath, adding to the cost per sq foot to build a deck while creating a new usable outdoor room beneath the structure.
Permit requirements vary by city and county, so always check with your local municipality before starting. Many King County jurisdictions require a permit once a deck exceeds roughly 200 square feet or 30 inches above grade, though Seattle uses a lower threshold.
The cost of above ground pool with deck installed tends to run higher than a standard ground-level deck, since the layout works around the pool's shape.
Configuration also shapes the final cost, not just material.
Custom features turn a basic platform into a true dream deck, though each adds to the final price.
Most industry cost versus value reports rank deck additions among the stronger home improvements for resale value, though the exact percentage recouped shifts year to year and varies by material and region. A well maintained deck is also a genuine selling point, since a new wood deck or composite build both give buyers real, usable outdoor space long before you ever consider selling.

Our completed projects page shows real Greater Seattle decks in all three materials, a useful reference before finalizing your own deck design.
Here is generally how a professional deck installation in Greater Seattle project comes together, start to finish.
If you want to fully finish the space, a WeatherShield pergola cover can complete your outdoor space with a covered deck that stays usable even on rainy afternoons.
Deck installation cost Seattle homeowners plan for comes down to material, size, and site conditions.
Cedar brings a classic, natural look for a lower upfront cost, but it asks for regular staining. Armadillo Composite trades a higher price tag for almost no maintenance, and Tigerwood delivers a dense, striking hardwood look.
Contour Fence has installed all three materials across Greater Seattle for years, and our homepage shows examples of each. If you are ready to see numbers for your own deck, reach out to Contour Fence for a clear estimate.
Most deck projects run $40 to $75 per square foot installed, depending on material, size, and site. Cedar deck cost per square foot installed sits lower, while Tigerwood and composite run higher.
For many homeowners, yes, since composite eliminates staining and sanding almost entirely. The cost of Trex decking installed and similar premium composite products often balances out over time.
Deck stairs installation cost depends on run length, material, and whether railing is included. A contractor can give an accurate estimate once they know your layout.
Yes. The cost to install a cedar deck, composite, and Tigerwood fall into different ranges, and each performs differently in Seattle's wet climate.
It depends on the deck's height and footprint, along with local jurisdiction rules. The cost of above ground pool with deck installed should include a call to your local building department.