The DIY Prefab Modular Sauna Kit sets-up quickly making a sturdy freestanding sauna room indoors or outdoors

SITUATION: You want a sauna outdoors, or one that sets-up quickly indoors, or you want to relocate it later, or you'd rather not endure construction in a spare room, or perhaps your sauna location is in the woods.

How to Build a Prefab Sauna Kit

Watch Videos

Assembly time: ½ day; excl base prep work

• Sauna kit starts as a wooden frame over the base
• The wall panels are screwed together which form the sauna room. Each panel is 6'8"H x 4"D x Width is flexible and depends on your site's needs, but usually 2' or more.
• Add the sauna door – which is part of a wall panel
• Prebuilt ceilng panels completely enclose the sauna. If outdoors, add the sauna roof.
• Next, you'll need to wire for your sauna heater. A conduit planned through the panel makes it easy to push your wire through. Or your electrician can just drill a hole. Mount or set your heater. Add your benches and you're ready to take a sauna.

View the Indoor Prefab Saunas:
4x4 | 4x5 | 4x6 | 5x5 | 5x6 | 6x6 | 5x7
6x7 | 5x8 | 6x8 | 8x12

View the Outdoor Prefab Saunas:
4x4 | 4x6 | 4x6 Slant | 5x6 | 5x7
5x7 + 2' Overhang | 5x7 + Porch | 5x7 Custom | 5x6 + 4x6 Anteroom

Modular saunas can be assembled with screw gun, and can be relocated!

No pressboard or plywood is ever used. These pre-built, insulated panels form the walls and ceiling of your sauna room. Our standard sauna rooms have clear cedar tongue and groove interiors and knotty bevel siding exteriors. All Cedarbrook sauna kits are made of 100% Western Red Cedar — even the frame!

Prefab Sauna Comparison

Note sizes are the interior measurement. The exterior measures about 8" greater.

* Custom and larger sizes available by quotation. Tylo heaters may be substituted please see the heater option dropdown box after clicking on a package

The DIY Prefab Modular Sauna Kit sets-up quickly making a sturdy freestanding sauna room indoors or outdoors

SITUATION: You want a sauna outdoors, or one that sets-up quickly indoors, or you want to relocate it later, or you'd rather not endure construction in a spare room, or perhaps your sauna location is in the woods.

How to Build a Prefab Sauna Kit

Watch Videos

Assembly time: ½ day; excl base prep work

• Sauna kit starts as a wooden frame over the base
• The wall panels are screwed together which form the sauna room. Each panel is 6'8"H x 4"D x Width is flexible and depends on your site's needs, but usually 2' or more.
• Add the sauna door – which is part of a wall panel
• Prebuilt ceilng panels completely enclose the sauna. If outdoors, add the sauna roof.
• Next, you'll need to wire for your sauna heater. A conduit planned through the panel makes it easy to push your wire through. Or your electrician can just drill a hole. Mount or set your heater. Add your benches and you're ready to take a sauna.

View the Indoor Prefab Saunas:
4x4 | 4x5 | 4x6 | 5x5 | 5x6 | 6x6 | 5x7
6x7 | 5x8 | 6x8 | 8x12

View the Outdoor Prefab Saunas:
4x4 | 4x6 | 4x6 Slant | 5x6 | 5x7
5x7 + 2' Overhang | 5x7 + Porch | 5x7 Custom | 5x6 + 4x6 Anteroom

Precut cedar sauna kits are composed of precut custom-cut cedar which basically line the walls of an existing room; kits also include sauna door, sauna heater, rocks and essential accessories

SITUATION: You're converting a framed closet, a shed or a spare framed room in your house, spa, resort or other facility into a sauna room.

DIY construction time: generally an electrical sauna takes 2-4 days if planned well with all materials and components at the ready, excluding room prep work.

How to Build a Precut Sauna Kit

Watch Videos

1. Prep work: If your closet or room has drywall now, you'll need to demo the room down to the studs. Flooring should be a non-permeable material.
2. Plan for location of heater and power source, vents, lights, and bench layout.
3. Wire the room for electricity, and for your heater's requirements.
4. Insulate with fiberglass insulation and a foil vapor barrier.
5. Nail the "pre-cut / custom-cut" cedar boards to the length of your ceiling and walls, thus lining the sauna room with cedar. Normally, cedar paneling is clad horizontally.

Continue reading our step-by-step How to Build a Sauna | Convert a Room article and videos.

When ready see our How to Order a Precut Sauna Kit.

View Our Home Sauna Kits/Packages:
4x4 | 4x5 | 4x6 | 4x7 | 5x5 | 5x6 | 5x7
6x6 | 6x7 | 5x8 | 5x9 | 6x8 | 5x10

View Our Commercial-size Sauna kits
6x8 | 6x9 | 6x10 | 7x7 | 7x8 | 7x9 | 7x10
8x8 | 8x9 | 8x10 | 8x12 | 9x9 | 9x10 | 9x12
10x10 | 10x12 | 11x11 | 11x12 | 12x12