Outdoor Saunas

Custom Sauna Installation for Portland Backyards & Gardens

Transform your outdoor space into a private retreat with a sauna built to withstand the Pacific Northwest climate. At Portland Custom Saunas, we design and install outdoor units that bring relaxation and wellness just steps from your home. Whether it’s a backyard patio, rooftop deck, or tucked-away garden corner, our saunas combine comfort, beauty, and long-lasting performance—perfect for rainy winters and crisp Oregon evenings.

What Comes With Every Outdoor Sauna Build

Each outdoor sauna is tailored to your property, lifestyle, and design preferences. From site prep and foundation work to the final installation, our team handles everything from start to finish. Want to enhance the experience? Many clients choose add-ons like extended porches, weatherproof lighting, Bluetooth sound systems, or spa-style connections to hot tubs and pools. The result is a resort-quality escape designed specifically for your Portland home.

Frequently Asked Questions

Are outdoor saunas durable in Portland’s rainy climate?

Yes. Outdoor saunas are built with weather-resistant materials and finishes that allow them to hold up year-round, even in Portland’s damp, rainy winters. Cedar, hemlock, and spruce are popular woods because they naturally resist moisture and decay. With proper sealing, insulation, and routine care, your outdoor sauna can last decades while still looking beautiful. We design every build with the Pacific Northwest climate in mind.

Do I need a foundation for an outdoor sauna?

Most outdoor saunas require a level, stable foundation to perform safely and efficiently. Options include concrete pads, pavers, or treated wood platforms. A solid base helps prevent shifting, improves drainage, and extends the lifespan of your sauna. During the planning stage, we’ll assess your property and recommend the best foundation for your layout and soil conditions.

Are barrel saunas a good choice for Oregon homes?

Barrel saunas are popular online because they look unique and are often marketed as affordable. However, they’re usually not recommended for long-term use in the Pacific Northwest. The curved shape makes them harder to insulate, which means more heat escapes and energy costs go up. They also struggle with water runoff in rainy climates, often leading to leaks, warping, and shorter lifespans compared to properly built square or rectangular saunas. For homeowners in Portland, we suggest custom-built outdoor units designed for durability, efficiency, and weather protection.

How much space do I need for an outdoor sauna?

Outdoor saunas are flexible in size. Small models can fit in as little as a 6’ x 6’ area, while larger builds may require 8’ x 12’ or more for family or group use. When planning, it’s important to leave room for both the structure and proper ventilation around it. We’ll measure your yard or patio and recommend the right layout to maximize comfort without overwhelming your space.

What are the benefits of an outdoor sauna compared to an indoor one?

Outdoor saunas provide a unique experience—stepping into the warmth from the cool evening air, or relaxing after a swim or soak in a hot tub. They’re often larger, more social, and can be designed as a centerpiece for backyards, patios, or gardens. Indoor saunas are more private and convenient, but outdoor saunas create an atmosphere that feels closer to nature. Many Portland homeowners choose outdoor builds for the year-round ritual of combining fresh air with heat therapy.