

We design and build custom railing systems and stairs for decks of every size and height. Whether you need a modern cable rail, a traditional wood handrail, or wide platform stairs, we make sure it’s secure, attractive, and 100% code-compliant. Built as part of your new deck — or added to an existing one — it’s done right the first time.
We build deck rails and stairs that don’t just meet code — they match your aesthetic. Choose horizontal lines, vertical pickets, or a custom combo of materials like wood, steel, cable, or glass. We design for the way your family uses your deck, adding safety and value without sacrificing looks.
Composite, wood, metal, cable, and glass options
Wide stair treads and multi-step landings
Railing systems with lighting or privacy upgrades

Deck railings and stairs take a beating — and need proper anchoring and structural support. We use lag-bolted posts, approved brackets, and blocking at every load point. Our stairs meet rise and run code, and all rails meet height and spacing requirements. Your system won’t just pass inspection — it’ll feel secure for years.

Already have a deck? We can replace your old railings or stairs with something safer and better looking. We remove old posts cleanly, check your structure, and install a custom rail and stair system to match your deck and needs. It’s an easy upgrade with a big impact.
We offer full customization on all stair and railing builds. Want sleek black metal with cedar top caps? Glass panels with wood framing? Composite systems with built-in lights? We help you choose a layout and materials that enhance safety without compromising design. It’s your deck — let it look how you want.

Built to Meet All Codes: Stair rise, tread depth, railing height, and spacing — we do it all by the book.
Strong, Safe Anchoring: Posts, footings, and bracketing built to hold up under real-world use.
Railing Style Options: Choose composite, wood, steel, cable, or mixed-material systems.
Add Privacy and Lighting: We install LED caps, privacy panels, and custom height screens.
Fast, Clean Install: We replace old railings and stairs without damaging your existing deck.
Don't worry, we can help!
We build stairs that feel natural to use — with comfortable rise, wide treads, and safe landings. Whether it’s a few steps to the yard or a long flight from a second-story deck, we make sure they’re safe, sturdy, and built to blend with your rail system.
Code-compliant stair slope and depth
Mid-run landings and lighting options
Designed for ADA or low-rise access if needed
Railing and stair changes can trigger inspections — and we’re ready for them. We handle plans, permits, and approvals where needed. Our installers work quickly, protect your yard, and leave your deck safer than we found it. You’ll get clear pricing and a final product that’s ready to use.
Railings and stairs are the most used — and most code-sensitive — part of your deck. Here are the questions we answer most often.
Yes — we retrofit new rail systems on safe, existing framing every day.
Composite or powder-coated aluminum. Both resist weather and need minimal upkeep.
In most cases, yes — especially for steps with more than three risers. We follow code exactly.
Absolutely. We offer extra-wide stairs, multi-tiered landings, and ADA-accessible options.











Built around your space, lifestyle, and goals using detailed 3D plans.

Durable, low-maintenance decks using Trex, TimberTech, and more.

Classic wood options built to match natural settings and last for years.

Fix framing, replace rot, and restore deck safety and stability.

Bring weathered decks back to life with sanding, staining, and sealing.

Tiered designs to match sloped yards and create layered living zones.

Upgrade or expand an existing deck with modern framing and surfaces.

Stay protected from sun and rain with full roof structures or pergolas.

Enjoy the outdoors without pests. Custom built enclosures for year-round use.

Full-featured cooking spaces built into your outdoor deck design.

Architectural accents that add shade, style, and structure to any yard.

Safe, slip-resistant decks built for wet zones and elevated support.

Custom outbuildings with deck-style finishes and aesthetic match.

Modern, traditional, or code-compliant railing systems built to last.

Built for business — large-scale, code-compliant, and built to withstand wear.

Innovation
Fresh, creative solutions.

Integrity
Honesty and transparency.

Excellence
Top-notch services.
Whether you’re planning a quiet backyard retreat or a bold rooftop gathering space, Alliance Deck Builders of Washington brings your vision to life. Let’s talk about your project, your style, and your budget — and create a deck that delivers long after the last board is laid.

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