Free Outdoor Sauna Plans

Author profile picture Written by Craftcamp Published: May 30, 2026 | Updated: May 30, 2026

A backyard sauna turns a corner of the yard into a year-round retreat, and building your own runs a fraction of the cost of a prefab kit. The plans below range from a compact 6×6 that seats two up to a 12×22 with its own covered cooling porch, so you can match the footprint to your space and how many people you want on the benches at once. Each design downloads as a free printable PDF covering framing dimensions, a cut list, and the bench layout that puts you up in the heater’s hot zone where a sauna actually does its work.

12x22 Outdoor Sauna Plans

Create your own backyard spa with this stylish wooden sauna design. Features a cozy sauna room and a covered pergola area for cooling down and relaxing outdoors.

6x6 Outdoor Sauna Plans

These sauna plans offer a modern design, efficient layout, and authentic sauna experience, perfect for creating a relaxing outdoor wellness space.

7x7 Outdoor Sauna Plans

Compact, stylish, and practical – this outdoor sauna offers a private wellness space in your own backyard. Perfect for daily relaxation and modern outdoor living.

8x20 Outdoor Sauna Plans

Modern outdoor sauna plans with a covered porch and spacious interior. Designed for comfort, natural light, and year-round relaxation in any garden or outdoor space.

8x8 Outdoor Sauna Plans

Build your own relaxing backyard sauna with these outdoor sauna plans. A compact DIY wood sauna designed for comfort, efficiency, and year-round use.

8x9 Outdoor Sauna Plans

Create a modern outdoor wellness space with these sauna plans. Designed with a natural wood finish, large glass front, and compact layout, this sauna cabin brings a clean and relaxing spa feel to any backyard, garden, or cabin property.