Railings and Stairs
Whether you’re planning a cozy backyard deck for family barbecues or envisioning a multi-level showpiece with a built-in jacuzzi and pool, King County Decks delivers expert craftsmanship and timeless design tailored to your space.
With over 15 years of experience in residential construction through our founding company, MJK Construction, we bring the same level of precision and professionalism to every deck we build—now with a specialized focus on outdoor living. From Bellevue to Seattle, Tacoma to Redmond, and across Kirkland and Mercer Island, homeowners trust King County Decks to turn ideas into functional, stunning outdoor extensions of their homes.
Built Around Your Needs
No two homes—or homeowners—are alike. That’s why we approach each project with custom solutions and flexible material options. Whether you’re seeking affordable pressure-treated wood for a simple build or high-end composite and hardwood materials for a luxury finish, we can source it, build it, and make it last.
Clear, Honest Estimates
Our quoting process is straightforward and transparent. We’ll walk you through every cost before construction begins—no hidden fees, no vague allowances, and no surprises. Just clarity, accuracy, and honest communication from start to finish.
Design Without Limits
Our team is experienced in projects of all sizes and challenges:
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Small family decks with pergolas and built-in seating
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Modern rooftop platforms for townhomes
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Elegant, tiered structures for sloped yards
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Fully engineered, three-story decks with integrated lighting, pools, hot tubs, and stair systems
No matter the complexity, we handle the design, permitting, and construction process with precision and care.
Serving Bellevue, Seattle, Kirkland, Tacoma, Redmond, Mercer Island, and surrounding areas — King County Decks is your trusted partner for decks that last.
No deck is complete without safe, well-built stairs and a railing system that ties everything together. At King County Decks, we design and install custom stairs and railing solutions that blend safety, style, and craftsmanship — whether you’re upgrading an old deck or building something entirely new.
With more than 23 years of residential construction experience through our parent company, MJK Construction, we bring a level of expertise that homeowners across Bellevue, Seattle, Tacoma, Kirkland, Redmond, and Mercer Island trust. From simple backyard patios to multi-level decks with pools and jacuzzies, we handle every project with care, precision, and clear communication.
Custom-Built Deck Stairs
We build stairs that are not only safe and durable but also a seamless part of your deck’s overall design. Whether you need a basic entry step, a wide stairway with landings, or a complex multi-level staircase, we construct each stair system to meet code and exceed expectations.
Stairs can be built from a range of materials, including pressure-treated lumber, composite decking, or hardwoods — all carefully installed for strength and stability.
High-Quality Railing Systems
Your railing isn’t just for safety — it’s a defining feature of your deck. We offer a full selection of affordable and premium railing options to match any style:
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Wood railings for a classic look
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Composite railings for low-maintenance durability
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Aluminum or cable systems for a modern aesthetic
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Custom-designed railings with decorative details or lighting
Whether you’re adding new railings to an existing deck or designing something from scratch, we’ll help you choose the right fit for your home.
Honest Quotes. Quality Work.
We believe in transparency. That’s why our quoting process is clear, detailed, and upfront. We provide real pricing with no hidden fees, walk you through every option, and keep the project on schedule from start to finish.
Serving Bellevue, Seattle, Tacoma, Kirkland, Redmond, Mercer Island, and nearby communities — King County Decks delivers expertly crafted stairs and railing built to last.
