Carbon Smart Finnish Sauna Room | 5' x 5'

The Finnish Sauna Builders Carbon Smart™ 5' × 5' × 8' Indoor Sauna Room Kit introduces the square format at a larger scale — 25 square feet of balanced interior space that distributes bench seating evenly across all four walls and creates an egalitarian, conversation-forward sauna environment that the narrower rectangular configurations cannot replicate. This is the kit for the household where sauna is a shared experience, and where the room should feel equally welcoming from every seat.

Available in Thermo Poplar or Western Red Cedar and compatible with Harvia's full 6KW WiFi range, the 5' × 5' Carbon Smart™ kit is the natural choice for homeowners upgrading from a personal sauna experience to one that welcomes a couple or small family with equal comfort. Finnish Sauna Builders' modular precision ensures that every panel, bench, and fitting meets the same standard of craftsmanship that has made Carbon Smart™ the most trusted indoor sauna kit in the premium residential market.

Key Features

• Format: Square 5' × 5' — balanced bench distribution on all walls; the most social configuration at this size
• Heater: Harvia KIP60W WiFi, KIP60B, Cilindro PC60, or Cilindro PC60E WiFi
• Wood Options: Thermo Poplar or Western Red Cedar
• Experience: The step up from personal to genuinely shared home sauna — without sacrificing spatial comfort
• System: Carbon Smart™ modular kit — Finnish Sauna Builders engineering throughout

Specifications

• Dimensions: 5' × 5' × 8' (W × D × H)
• Capacity: 2–3 persons
• Wood: Thermo Poplar or Western Red Cedar
• Heater Range: 6KW
• Investment: From $6,935.20