Custom Deck Building
Ground-level, elevated and multi-level decks designed from scratch — sized for dining, lounging, hot tubs and Seattle's sloped lots.
Get a quote →Seattle decks built for rain, views & long summers
Trident Decks designs and builds custom cedar and composite decks across Seattle — from first sketch and permits to the final board. One local crew, honest pricing, and a deck that fits how you actually live outside.
Free on-site estimate
Permits handled for you
Cedar & composite experts
Based in Wedgwood
7744 35th Ave NE, Seattle — serving the city & Eastside
(425) 999-7848
Built to Seattle codeFootings, framing and railings that pass inspection the first time.
Weather-ready materialsRot-resistant cedar and low-maintenance composite made for PNW rain.
Clear, written pricingA line-item quote before work starts — no vague allowances.
One local crewThe people who quote your deck are the people who build it.
What we build
Deck services
New builds, rebuilds and upgrades — designed around your yard, your view and how your family uses the space.
Composite Decks
Low-maintenance composite and PVC decking that won't rot, warp or need yearly staining — with hidden fasteners for a clean finish.
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Cedar & Wood Decks
Western red cedar and pressure-treated decks with the warm, natural look the Northwest is known for — built with proper drainage and airflow.
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Deck Repair & Resurfacing
Keep a solid frame and save money: we replace worn boards, fix soft spots and stairs, and resurface old decks in cedar or composite.
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Railings, Stairs & Pergolas
Cable, aluminum and wood railings, wide comfortable stairs, pergolas and covered structures that extend your deck season.
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Outdoor Living Spaces
Decks that flow into patios and gardens — built-in benches, lighting, planter boxes and under-deck dry space for year-round use.
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Ballpark cost
What might my deck cost?
Slide to your deck size and pick a material for an instant ballpark range. Every project is quoted exactly after a free site visit — slope, height and access all move the real number.
Deck size
320 sq ft
Decking material
Add-ons
Estimated range
$17,600 – $25,600
For a 320 sq ft cedar deck, installed. Ballpark only — your free on-site quote gives the exact, written price.
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Inspiration
Deck styles we build
A look at the styles Seattle homeowners ask us for most. Tap any photo to view it larger.
How it works
From first call to first barbecue
01
Free Site Visit
We visit your home, measure the space, talk materials and check slope, access and drainage.
02
Design & Written Quote
You get a clear layout and a line-item price — materials, labor, permits — with no surprises later.
03
Permits & Build
We handle Seattle permitting where required, then build: footings, framing, decking, rails and stairs.
04
Walkthrough & Care Guide
Final walkthrough together, plus simple care instructions so your deck stays solid for decades.
About Us
About Us — A local Seattle crew that builds decks like our own
Trident Decks is a Seattle deck builder based on 35th Ave NE in Wedgwood, building across Seattle and the Eastside. Decks here live a hard life — months of rain, moss, and low winter sun — so we build for drainage, airflow and footing depth first, and good looks second. The result is a deck that still feels solid and looks sharp years later.
Visit / Service HQ: 7744 35th Ave NE, Seattle, WA 98115
Call us: (425) 999-7848
- Concrete footings below frost depth, galvanized hardware throughout
- Joist tape and flashing details that keep PNW moisture out of the frame
- Honest advice on cedar vs. composite for your budget and sun exposure
- Clean job sites — we haul away the old deck and debris
Materials
Cedar vs. composite vs. treated wood
The honest trade-offs we walk through with every homeowner at the free estimate.
| Material | Upkeep | Typical lifespan | Best for |
|---|---|---|---|
| Western Red Cedar | Seal or stain every 2–3 years | 15–25 years | Natural look and feel, classic NW style |
| Composite | Wash once or twice a year | 25–30+ years | Busy families, shaded & wet yards |
| PVC Decking | Wash once or twice a year | 30+ years | Maximum moisture resistance, pools & hot tubs |
| Pressure-Treated Pine | Seal yearly for best life | 10–20 years | Tight budgets and rental properties |
Reviews
What Seattle homeowners say
★★★★★
"They tore out our rotting deck and rebuilt it in composite with a cable rail. The crew showed up when they said they would and the yard was spotless at the end."
★★★★★
"The written quote matched the final bill exactly. Our sloped lot needed real footings and they explained every step before starting."
★★★★★
"Fast, fair and the craftsmanship is excellent — the wide stairs and built-in bench get compliments from every guest we have over."
Design preview: sample reviews shown for layout — these will be replaced with Trident Decks' real customer reviews before the site goes live.
Service areas
Based in Wedgwood, building across Seattle
Our shop is at 7744 35th Ave NE. Most projects are within about 25 minutes of home base.
WedgwoodRavennaView RidgeBryantMaple LeafGreen LakeWallingfordBallardFremontCapitol HillQueen AnneMagnoliaWest SeattleLake CityShorelineBellevueKirklandRedmondMercer IslandBothell
Outside the list? Call (425) 999-7848 — if we can reach you, we'll tell you honestly.
Questions
Deck building FAQ
In most cases, yes — Seattle generally requires a permit for decks over 200 sq ft, more than 30 inches above grade, or attached to the house. We check your project against current city rules and handle the permit paperwork when it's needed.
Most single-level decks take about 1–2 weeks of on-site work once permits are in hand. Larger multi-level or covered projects can run 3–4 weeks. Your written quote includes a realistic schedule for your specific project.
Both work well here when built right. Cedar costs less up front and looks natural, but needs sealing every 2–3 years. Composite costs more, shrugs off rain and shade, and only needs washing. At your free estimate we'll weigh your yard's sun, trees and budget.
Often, yes. If the posts, beams and joists are sound, resurfacing with new cedar or composite boards can save a significant amount versus a full rebuild. We inspect the frame at the free visit and tell you honestly whether it's worth keeping.
It depends on size, material, height and site access. Try the cost estimator above for a ballpark range, then book a free site visit — you'll get an exact, written, line-item quote with no obligation.
Yes. Demolition and haul-away of the old deck is included in rebuild quotes, and disposal is priced in the line items so there are no surprises.
Free quote
Tell us about your deck project
Fill in the form and we'll call you back to schedule your free on-site estimate — or reach us right now:
(425) 999-7848Call or text — fastest way to reach us
7744 35th Ave NE, Seattle, WA 98115Wedgwood — serving Seattle & the Eastside
Free estimatesOn-site visits scheduled at a time that suits you
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