Custom Deck Construction in Mercer Island, WA

Elevate your outdoor living with Petra Decks—Mercer Island’s trusted custom deck builders.
From initial concept to final build, we specialize in creating stunning, durable decks designed for your home, lifestyle, and views of Lake Washington.

Custom Deck Installation Services We Offer

From compact patios to large multi-level decks, Petra Decks offers full design and construction services for all deck types.

Design + Build Services

We start with a personalized consultation, provide 3D designs, secure permits, and handle full construction with zero hassle.

Material Options

• Composite (Trex, TimberTech, Azek, EVA-Last)

• Cedar and other hardwoods

• Weather-resistant framing and fasteners

Deck Add-ons & Upgrades

• Integrated lighting

• Railings & privacy screens

• Covered sections & pergolas

• Waterproof under-deck systems

See Our Deck Projects in Mercer Island

Take a look at our completed decks across Eastside King County. Each project reflects our attention to detail, quality craftsmanship, and commitment to customer satisfaction.

Why Choose Petra Decks in Mercer Island?

We serve homeowners throughout Mercer Island with personalized deck solutions that offer long-lasting value, beauty, and function.

✅ Local Expertise

We understand the terrain, weather, and style preferences unique to Mercer Islan homes.

✅ Built for the PNW

Our decks are crafted to handle rain, moisture, and seasonal shifts—resisting rot, warping, and mold.

✅ Premium Materials

From natural cedar to high-performance composite decking, we offer material options to match your aesthetic and budget.