Custom Deck Design & Construction in Eastside King County, WA
At Petra Decks, we turn outdoor dreams into reality with custom deck design and construction services across Eastside King County. Whether you’re looking to build a modern composite deck or a classic cedar structure, every project starts with a design that’s tailored to your home’s architecture, landscape, and lifestyle.
A Collaborative Custom Deck Design Process with Purpose
From Inspiration to Build-Ready Plans
At Petra Decks, our design process is collaborative, thoughtful, and driven by your vision. We listen closely to your ideas and turn them into detailed, build-ready plans that reflect your goals, lifestyle, and property.
Designed with Your Vision in Mind
Tailored Outdoor Living Spaces That Fit Your Life
Whether you're dreaming of a spacious entertainment deck, a quiet backyard retreat, or a multi-level space for the whole family, we take time to understand your goals and bring them to life—beautifully and practically.
Engineered for the Pacific Northwest
Built to Handle King County’s Climate & Codes
Every design is crafted with our region in mind—from managing heavy rainfall and moisture to adapting to elevation changes and meeting strict building codes across King County, WA.
Balancing Beauty & Function
Aesthetic Elegance Meets Everyday Use
Our custom decks are built for real life. We incorporate your style preferences and lifestyle needs—like privacy, sun/shade balance, durable materials, and kid-friendly design—so your space looks great and works hard year-round.
What’s Included in Our Custom Deck Design Services
Our design services are the first step in building your dream deck, patio, or multi-level outdoor space.
Consultation & Site Visit
On-site analysis of your property
Ideas for layout, material, and functional zones
Understanding of your style, needs, and budget
Conceptual Designs & Renderings
Scaled 2D and 3D renderings
Adjustments for layout and features
Material options presented (composite, cedar, hardwood)
Permit-Ready Plans
Professionally drafted designs ready for city/HOA submission
Seamless transition from design to construction with our team
Why Choose Petra Decks for your Deck Design & Installation?
25+ Years of Expert Craftsmanship
With decades of hands-on experience in framing and outdoor construction, we bring lasting quality and precision to every project.
Local Knowledge That Matters
From complex terrain to HOA regulations and King County building codes, we design decks that meet all local requirements—seamlessly and stress-free.
A Collaborative, Transparent Process
We value clear communication and honest guidance, partnering with you every step of the way to bring your vision to life with confidence.
Composite decking and railing
Our expertly crafted composite decks are built to endure the Pacific Northwest climate using premium materials like Trex, Azek, TimberTech, EVA-Last and Fiberon.
Designed for durability, style, and low maintenance, each deck is tailored to elevate your outdoor living experience while adding long-term value to your home.
We proudly serve homeowners in Bellevue, Sammamish, Snoqualmie, Issaquah, Newcastle, Redmond, Kent, Renton, and Covington—bringing expert craftsmanship and local insight to every job. Whether your property offers Lake Sammamish views, or sits on a sloped lot in Redmond or a wooded area in Issaquah, we design decks that maximize both beauty and functionality. From entertaining and dining al fresco to quiet evenings outdoors, your deck will be built to suit how you live.