Portland’s trusted deck and patio builders — 22 years of turning backyards into living spaces.
Portland is known for its lush greenery, rainy winters, and glorious summer evenings—so why not make the most of every weather moment with a custom deck or patio? At Cornerstone Builders, we’ve been designing and building outdoor living spaces for 22 years. Whether you dream of a composite deck for low-maintenance entertaining or a natural stone patio that blends with your garden, our team delivers premium craftsmanship tailored to your home and lifestyle. Deck and patio building in Portland, OR requires careful attention to local codes, slope, soil, and climate. We handle everything from engineered foundations to final staining, so you get a safe, beautiful space that adds real value. From cracking concrete to sagging wooden decks, we solve the problems that come with age and weather. Let us transform your backyard into an extension of your home—built to last through Pacific Northwest seasons.
We create one-of-a-kind layouts that match your architecture, lot size, and how you actually use your outdoor space. No cookie-cutter solutions.
We source only top-grade cedar, Ipe, Trex, and local stone that withstand Portland’s damp climate without warping, rotting, or fading.
Navigating Portland’s building requirements is easy with us. We handle all permits and inspections so your project is legal and safe from day one.
Our teams coordinate with your existing yard features—trees, slopes, drainage—to create a deck or patio that feels like it was always there.
Add a covered pergola, retractable awning, or outdoor heaters to extend your living space into Portland’s cooler months. We make it possible.
We stand behind our work. Every deck and patio we build comes with a two-year warranty on labor, plus manufacturer warranties on materials.
We meet at your home to measure your space, listen to your ideas, and discuss budget, timeline, and material options for your deck or patio.
Our designers create a 3D rendering of your new outdoor space, complete with a detailed quote. You approve the plan before any work begins.
Our crews handle everything—excavation, framing, surface prep, and finishing—following strict quality checks and local building codes.
We inspect every detail with you, answer any questions, and provide a simple care guide to keep your deck or patio looking great for years.
Pricing for deck and patio building in Portland, OR typically ranges from $15,000 to $50,000 or more, depending on size, materials, and complexity. A basic 200-square-foot pressure-treated wood deck might start around $8,000, while a large multi-level composite deck with built-in seating and lighting can easily exceed $60,000. Patios using concrete pavers or natural stone vary similarly—expect $12 to $25 per square foot installed. Factors that affect cost include site preparation (removing old structures, grading), foundation work (pier footings vs. concrete slab), railing style, stairs, and any custom features like pergolas or outdoor kitchens. We provide transparent, itemized estimates so you know exactly where your investment goes. With Cornerstone Builders, you’re paying for 22 years of craftsmanship, strong warranties, and a finished product that boosts your home’s value and your enjoyment.
For an exact quote tailored to your property, call ☎ for a free estimate.
“Cornerstone turned our useless back slope into a beautiful two-level deck with a built-in bench. They were professional, on time, and the quality is amazing.”
Join hundreds of Portland homeowners who trusted Cornerstone Builders. We’ll design and build a space you’ll love for decades.
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