Deck Building
Custom Deck Building in Seattle, WA | Mill Decking
Getting a new deck shouldn't feel like a risk. Whether you're starting from scratch or finally replacing that warped platform that's been on the list for two years, we build outdoor spaces that hold up to Pacific Northwest conditions and look as good in year ten as they did at the final walkthrough.
5+ years of experience
Certified Contractor
Seattle's Favorite Deck Builders 2026
What we offer
We build decks for how Seattle homeowners actually live. From compact urban patios to sprawling multi-level builds.
New deck construction. Residential, all sizes and configurations
Complex multi-level and multi-tier deck systems
Pool and patio deck builds
Composite, cedar, and hardwood (Ipe, Batu) decking
Covered deck and roof structure installation
Custom railing. Wood, aluminum, and metal systems
What's included
Everything needed for a solid, finished outdoor space. Nothing left off the invoice later.
Free site visit and detailed written estimate
Full permit management and code compliance
Framing, footings, decking, and railing installation
Material selection from our full brand lineup
Licensed installation by our own crew
Final walkthrough and complete site cleanup
Our approach
We assess before we build and communicate throughout.
We look at your site, grade, and intended use before recommending any system
We spec materials we'd put on our own homes. No filler brands
We pull every permit and handle all municipality coordination
We give you a timeline upfront and hold to it
Why choose Mill Decking
Five years. Two hundred builds. The same family on every job.
200+ completed deck builds across the Seattle metro
Full material lineup: TimberTech, Trex, MoistureShield, Wolf, Eva-Last, Ipe, Batu, Cedar
All-in pricing. Permits and labor included in the quote
Licensed, insured, and consistently five-star rated
Benefits of a new deck
More than outdoor space. A real return on your investment.
Adds usable living space through every Pacific Northwest season
Increases resale value and curb appeal significantly
Built specifically for Seattle moisture, rain, and weather cycles
Backed by warranty on both labor and materials
FAQs
How long does a deck build take?
Most residential builds complete in 5 to 7 days depending on size and complexity.
Do you handle permits?
Yes. Permit management is included on every project. We handle all paperwork and municipality coordination.
What material works best for Seattle weather?
MoistureShield, TimberTech, Trex, and Western red cedar are our top recommendations for PNW moisture resistance and long-term performance in this climate.
Do you build multi-level decks?
Yes. Complex multi-level builds are one of our specialties. We've completed over 200 projects, many of them multi-tier.