This second-story Trex deck replacement in Seattle, WA involved rebuilding a rotted 280-square-foot wood deck with Trex Transcend composite decking. Our four-person team used cable railing, integrated step lights, and Grade #1 pressure-treated lumber, completing the project in one week. The finished deck does not require the routine sanding, staining, painting, or sealing associated with wood decking.
Project Snapshot
| Project Detail | Information |
| Location | Seattle, WA |
| Project Type | Second-story deck replacement |
| Challenge | Existing deck was rotted |
| Solution | Wood-to-composite deck rebuild |
| Materials | Trex Transcend, cable railing, step lights, Grade #1 PT lumber |
| Timeline | One week |
| Crew | Four deck builders |
| Result | Renewed composite outdoor space |
Why Deck Repair Was Not Enough
The original deck had developed rot and needed replacement. Resurfacing retains the existing frame and replaces the surface boards, so it is appropriate only when the joists, posts, footings, and other structural components remain sound. Homeowners weighing the same decision can review our deck resurfacing vs. deck replacement guide. For this project, a full rebuild allowed our team to replace the deteriorated deck and install the new composite surface, railing, and lighting.
Homeowner Goals
The homeowners wanted to replace the deteriorated deck and move from wood to Trex decking. Some homeowners compare cedar decks with composite systems, but cedar was not part of this confirmed project scope. Their goal was to improve their outdoor living experience by creating a finished space where they could relax and spend time outside.
The Trex Decking Solution
The rebuilt deck combines Trex Transcend composite boards with cable railing, integrated step lights, and Grade #1 pressure-treated lumber. Seattle requires guardrails when a deck is more than 30 inches above the adjacent ground or lower roof. For this project, the cable railing enclosed the elevated perimeter while retaining an open visual profile.
Materials Used in the Deck Installation
| Material | Use |
| Trex Transcend | Composite deck surface |
| Cable railing | Second-story deck perimeter |
| Step lights | Lighting along the deck steps |
| Grade #1 PT lumber | Supporting deck structure |
How Our Seattle Deck Builders Handled the Deck Construction
Our four-person team built the supporting structure with Grade #1 pressure-treated lumber, installed the Trex Transcend boards, and added the cable railing and step lights. The complete 280-square-foot replacement took one week. Our five-step deck building process explains how we coordinate consultation, design, installation, and the final walkthrough.
Before and After: From a Rotted Wood Deck to a New Deck
Before construction, the homeowners had a rotted wood deck that required replacement. Afterward, the finished Trex composite deck—with cable railing and step lights—helped restore the homeowners’ outdoor living space. In their feedback, they described the outdoor living space as “completely transformed” and praised the speed of the work and the clean jobsite.
A Composite Deck for Pacific Northwest Conditions
Seattle experiences over 150 rainy days each year. Repeated rain and changing Pacific Northwest weather can expose real wood to sustained moisture. Seattle’s wet climate can lead to moisture rot in wood framing. Composite decking does not require routine staining, sanding, painting, or sealing, while Trex planks provide a durable alternative designed to stand up to moisture and resist rot, warping, and peeling. Composite decking lasts 25 to 50 years with proper installation. Installation quality and maintenance can affect its service life. Before deciding to pressure wash the boards, homeowners should follow Trex’s current care instructions. Following those instructions can also reduce the risk of a scratch caused by abrasive cleaning or dragged furniture. Proper framing and installation remain important for long-term performance in Seattle’s climate.
FAQs
How long did this second-story deck replacement take?
A four-person team completed the project in one week.
Why was the deck rebuilt instead of resurfaced?
The existing deck was rotted and needed replacement. Resurfacing would have retained the existing structure rather than addressing the full condition.
What type of Trex decking was installed?
The deck builders installed Trex Transcend composite decking; Trex was the selected brand, and Transcend was the product line.
What features were included in the new deck?
The project included cable railing, step lights, and Grade #1 pressure-treated lumber in addition to the composite surface.
Discuss Your Project With Seattle Deck Contractors
Planning a similar composite upgrade in Seattle, WA? Whether the new structure connects directly to the house or extends into the backyard, beginning the planning process before summer gives homeowners more time to compare available options. Olympic Decks is a deck company serving the Seattle area with local experience in custom decks and replacement work. Contact our team to discuss available deck services, compare material and design options, understand the expected cost, and request a free estimate with clear communication throughout the planning process.
