How Much Does It Cost to Build a Deck?
Wondering what it costs to build a deck? Get a breakdown of pricing by material, size, and features from the Puget Sound's custom deck experts.
If you're planning a new deck, the first question is almost always the same: what's this going to cost? The honest answer is "it depends" but the factors it depends on are predictable, and once you understand them, you can budget with confidence.
The Main Cost Factors
Size. Deck pricing is typically calculated per square foot, so a 200 square foot deck will cost meaningfully less than a 500 square foot deck, even with identical materials. Most homeowners land somewhere between 150 and 400 square feet for a standard back deck.
Material. This is the biggest swing factor in your budget:
Pressure-treated wood is the most budget-friendly option, generally running on the lower end per square foot.
Cedar sits in the mid-range, prized for its natural look and rot resistance.
Composite decking (like Trex) costs more upfront but requires little to no ongoing maintenance. No staining, sealing, or sanding.
Premium composite or exotic hardwoods sit at the top of the price range for the highest end look and longevity.
Height and substructure. A ground level deck is simpler and cheaper to build than a raised, multi level deck that requires additional footings, posts, and stair systems.
Railings and features. Cable railing, glass panels, built in lighting, and custom stairs all add cost but also add significant curb appeal and usability.
Permits and site conditions. Sloped yards, difficult access, or local permitting requirements can add to labor time and total project cost.
Rough Cost Ranges
While every project is unique, here's a general sense of what homeowners typically see per square foot, from budget friendly to premium:
Pressure-treated wood: lower end
Cedar: mid range
Composite (Trex, TimberTech): mid-to-upper range
High end composite, cable railing, multi level designs: top of the range
These are general industry ranges, not quotes. The only way to know your real number is a site visit and a detailed estimate.
Why a Free Estimate Beats a Guess
Online calculators can't see your yard, your slope, your access points, or your vision. The most accurate way to budget for your deck is a free, no-obligation estimate from a local team who can walk your property and give you real numbers.
If you're ready to find out what your dream deck actually costs, Stellar Decking offers free estimates across the Puget Sound area. From Marysville down to Renton, on both sides of Lake Washington. Reach out today and we'll help you turn a rough budget into a real plan.
