Mod Series Modular Saunas (Mod4 & Mod6)

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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