4 Person Barrel Sauna No 61 DIY Kit with Porch

The 4 Person Barrel Sauna No 61 DIY Kit with Porch is a 4-person barrel sauna DIY kit built from thermally-modified Northern European Spruce — chemical-free, kiln-stable, and engineered to outlast cedar in any climate. Pre-cut and pre-milled with no on-site cutting required, you'll install it in about a day with no specialty tools.

Configure your build below: pick a structural Configuration (Sauna Solo or with add-on kits), choose your heater package (Harvia or Homecraft, or bring your own), and add lighting or accessory packages.

Key Features

Dimensions

Choose Your Heater

Pick from authorized Harvia (Finland) or Homecraft (USA) heater packages. All Homecraft packages include the Outdoor Wifi Touchpad and stones. Harvia packages with Fenix Control add a separate Wi-Fi-enabled touch panel.

8 kW Harvia KIP B Mechanical dial control · Stainless steel cabinet 240V 1-Phase · Made in Finland

8 kW Harvia KIP W + Stones Xenio Smart Wi-Fi touch panel · Stainless steel 240V or 208V · Made in Finland

8 kW Harvia Spirit + Stones Premium wall-mount · Xenio + Fenix Wi-Fi control Stones + Fenix touchscreen included · Made in Finland

6 kW Homecraft Revive Slim Slim-profile electric · Outdoor Wi-Fi touchpad included Back baffle · Stones included · 240V · Made in USA

Full Panoramic Window Kit

Transform the rear wall of your sauna into a panoramic vista. The Full Panoramic Window Kit replaces the standard rear panel with a full-height tempered glass window — pulling sunlight in and opening up your view to lake, forest, or backyard. Built from the same thermally-modified Spruce framing as the sauna body, sealed for sauna humidity, and engineered to handle daily heat cycles for decades.

Juniper Half Wall Panel Kit

Add a contrasting feature wall in genuine Finnish juniper — a dense, aromatic hardwood that resists moisture and releases a subtle scent in the heat. The half-wall panel adds visual depth at the seating area while keeping the upper sauna open and bright. A signature Nordic accent.

2-Tier Bench Kit (+$347)

Upgrade your barrel sauna's seating with a second upper bench tier — that's where the real heat sits, where the löyly is hottest, and where serious sauna bathers want to be. Comfortably seats two on the top row plus two on the lower bench, with thermally-modified Aspen slats that stay cool to the touch even at 200°F+.

Add-on Modifiers

Stack any add-on with your chosen Configuration and Heater bundle — picked separately so you only pay for what you want.

• Under-Bench Lighting (+$689) — Warm LED strip lighting concealed beneath the lower bench. Sauna-rated, low-voltage, with dimmer.
• Bucket, Ladle & Thermometer Package (+$298) — Finnish hardwood bucket with PVC liner, matching ladle, and a sauna-rated thermometer/hygrometer combo. Ready to use on day one.

Why Thermory

Thermory is the only thermally-modified barrel sauna manufacturer in North America. We heat and steam our Nordic spruce to chemically alter the wood at the cellular level — releasing sugars that attract rot, stabilizing the cell walls against moisture, and locking in dimensional stability that cedar can't match. Result: a sauna that doesn't shrink or warp through changing seasons and outperforms competitors on durability, rot-resistance, and clean aesthetic. No chemicals. No sealers required. Just wood, perfected.

What's Included

• Pre-cut and pre-milled body staves and wall panels
• Sauna cradles & metal banding
• Interior bench framework, backrest staves, duckboard flooring
• Tempered-glass front door
• All fasteners, adhesive roof tape, and hardware
• Heat shield, cable raceway
• Rain jacket and exterior trim package
• Step-by-step installation guide

Heater not included — select your Harvia heater bundle in the Configuration dropdown above.