Deck Design & Construction in Portland, OR

Deck Builders of Portland

Engineered for Portland Rain & Sun

Decks That Perform in Every Season

We build decks for the Pacific Northwest climate—rain, sun, wind, and wet ground. With pressure-treated frames, composite boards, and proper drainage, your deck won’t sag, mold, or rot. From porches to platforms to rooftop decks, our builds hold strong and stay beautiful.

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One Contractor. Every Step.

Full-Service Deck Construction in Portland

We manage layout, engineering, permits, materials, and building—all in-house. No subs. No surprises. Whether you want a ground-level patio deck, rooftop hangout, or ADA-compliant porch, we get it done cleanly, on time, and up to Portland code.

Composite, cedar & pressure-treated decks

Covered porches, rooftop decks & pergolas

Custom stairs, ramps, ADA decks & railings

Rooftop deck with cable rail and seating in Portland OR urban home

We Handle Permits & Inspections

Decks Built to Portland Building Code

Whether your property is in the City of Portland, Multnomah County, or an HOA-restricted zone, we manage all permits and code requirements. From fire setbacks to height limits and access clearances, your project will be approved fast and built right.

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Composite deck with built-in seating and railing in Portland backyard

Built for Northwest Durability

Decks That Last in Portland Weather

We build for long wet seasons, freeze-thaw cycles, and summer sun. Every deck includes sealed framing, weather-rated fasteners, and breathable spacing for proper drainage. Whether you're installing a cozy front porch or a full multi-zone outdoor living space, it’s built to stay solid and safe.

Designed for Every Lot, Style & Use

Custom Decks for Portland Properties

We build decks for classic bungalows, narrow infill lots, and modern hillside homes. Whether you’re in SE, NW, or the West Hills, we create a design that fits your layout and look—whether that means rooftop access, stair landings, or multiple levels to navigate slope and grade.

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Multi-level cedar deck with privacy screen and stair access in SE Portland

We Build Across the Portland Metro

Wood deck with classic railings and stair ramp in Sellwood-Moreland Portland

Sellwood-Moreland: Porch decks and elevated platforms are common here—often with historic details and ADA upgrades.

Rooftop deck with planters and seating in Alberta Arts District Portland

Alberta Arts District: Urban decks here maximize small lots with rooftop designs, planter boxes, and compact seating zones.

Tiered hillside deck with glass railings and stairs in West Hills Portland

West Hills: We specialize in slope-adapted builds here—multi-level decks with view access, privacy rails, and stairways.

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About Alliance Deck Builders of Portland

Alliance Deck Builders of Portland designs and constructs decks for every home style and slope. From porch rebuilds in older neighborhoods to modern rooftop platforms and commercial patios, we bring Portland-specific code knowledge, regional materials, and smart engineering to every job.

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Homeowners, Renters & Commercial Clients

Deck Builders for All of Portland

We build for homeowners, property managers, and businesses across the metro. Whether it’s a rental porch in North Portland, a rooftop deck in the Pearl, or an ADA platform in Southeast, our builds meet your needs and pass inspection—fast.