Decking

Deck design & construction in Portland, OR.

Custom decks in Trex composite, cedar, redwood, and hardwoods. Engineered to last, finished like part of the home.

What's included in a Cornerstone deck.

A great deck turns a backyard into an outdoor room, somewhere you actually live, not just somewhere you walk through. Ours start below the surface, with footings and framing built to handle decades of Oregon wet, and end with the details that make a deck feel like it was always part of the home.

  • Design consultation and material walkthrough
  • Footings, posts, and framing engineered for the PNW
  • Trex® composite, cedar, redwood, or hardwood decking
  • Stairs, railings, and fascia finished to match
  • Proper spacing, flashing, and ventilation against moisture
  • Full site cleanup and a final walkthrough together
Cornerstone crew fastening pressure-treated deck joists during a Tualatin, OR deck build

Trex composite or natural hardwoods.

Cornerstone builds decks in premium Trex® composite for low-maintenance longevity, or natural cedar, redwood, and Brazilian hardwoods for the timeless look. We'll walk you through the real trade-offs of each, cost, upkeep, and how they age in our climate, so you choose with clear eyes.

Whichever material you pick, it's engineered to last and finished with the details that make a deck feel like part of the home.

Warranty

Backed in writing.

Every Cornerstone deck is backed by manufacturer warranties on materials plus our own written workmanship guarantee. Trex composite carries up to a 25-year fade and stain warranty, and we stand behind the frame beneath it.

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Ready to talk about your decking project?

Let us walk through your home and lay out the path forward. Free consultation, no obligation.

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