Collection: Mod Series Modular Saunas (Mod4 & Mod6)

Quick Answers

PRIMARY PURPOSE:

Shop Mod Series modular saunas (Mod4 / Mod6) and compare layouts, exterior styles, and installation fit.

WHAT MAKES THEM DIFFERENT:

patented precision-milled joinery, fewer fasteners, tight tolerances, and premium materials

BEST NEXT STEP:

Pick your size (Mod4 vs. Mod6), then choose your benching style (social vs. athletic) and heater type (electric vs. wood).

One System. Endless Ways to Sauna.

Meet the Mod Series — modular saunas designed to fit your space, your style, and how you sauna. Choose Mod4 or Mod6, electric or wood-fired, indoor or outdoor, with modern or traditional exteriors and social or athletic benching layouts to suit how you use your sauna. Built from rot-resistant Thermory wood and insulated with natural sheep’s wool insulation for up to 4× the R-value of traditional saunas, the Mod Series delivers high-performance heat, simple installation, and timeless design.

Precision-Built, Patented to Perform.

The Mod Series is engineered with patented, precision-milled joinery that allows each component to fit together like a glove. Instead of relying on hundreds—or even thousands—of fasteners like typical prefab saunas, our proprietary wood-to-wood connections do the work, requiring only a small, intentional set of hardware. The result is faster assembly, tighter tolerances, and a structure that feels custom-built rather than prefabricated.

WHY THE BUILD SYSTEM MATTERS DAY-TO-DAY?

For owners, performance isn’t just about heat—it’s about consistency. Tight joinery and a well-insulated envelope support steadier sessions, while a simplified build system can reduce installation headaches. If you’re comparing sauna styles, use the main category hubs to keep your research organized: Saunas, Indoor Saunas, and Outdoor Saunas.

HOW TO SHOP THIS COLLECTION:

Choose your SIZE:

Thermory MOD4 and Mod6 options

Choose your LAYOUT:

Social benching (Mod6) or athletic-style layouts (where available).

Choose your HEAT:

Electric sauna heaters or wood-burning sauna heaters (based on model + site requirements).

Finish the Space:

Sauna lighting, accessories, and comfort add-ons

Shop Mod Series Saunas:

Browse the product grid on this page for live availability, configuration options, and pricing. To learn more about the Mod6 system and design details, visit:

FAQs

What is the Mod Series?

The Mod Series is a line of premium modular saunas built with precision-milled components, designed to simplify installation while delivering a high-performance sauna envelope.

What’s the difference between Mod4 and Mod6?

Mod4 and Mod6 refer to different size/layout families. Choose based on your footprint, how many people will use the sauna most often, and whether you prefer social seating or more athletic-style benching.

Can Mod Series saunas be used indoors or outdoors?

Many configurations are suitable for indoor or outdoor placement. Use the Indoor Saunas and Outdoor Saunas hubs to compare placement needs and plan your site prep.

What heaters work with Mod Series saunas?

Heater compatibility depends on model and installation plan. Start with electric sauna heaters or wood-burning sauna heaters, then confirm sizing and requirements on the product pages.

Meet the Mod Series—premium modular saunas designed to fit your space, your style, and how you sauna. Choose Mod4 or Mod6, configure for indoor or outdoor placement, and pair with electric or wood-fired heat. Built with rot-resistant Thermory wood and insulated with natural sheep’s wool, Mod Series saunas are engineered for high-performance heating and streamlined installation.