Skip to content
20x8 Zen Studio Container Plans – Yoga, Cold Plunge, Sauna 1 / 15

A 20ft high-cube container turned into a wellness room: a cedar-slat sauna at one end with its own stove, a cold-plunge tub beside it behind pocket doors, and an open 8' x 12' studio at the other end for yoga, stretching or a massage table. One container, three uses, and the original container doors still open the studio end to the garden.

Key Features

20ft High-Cube Container: One container, 20' x 8', about 160 sq ft, 9'-6" tall. Sauna (4'-0"): Slatted wood bench wall and a sauna stove at the closed end. Cold Plunge (6'-0"): A tub with a hand shower, between the sauna and the studio, closed off with pocket doors. Open Studio (8'-8"): Clear floor for yoga mats, a massage table or a workout bench, with a window on the long wall and a swing door. Container Doors Kept: The studio end keeps its original doors, with a glazed end wall behind them; close them and the room is a steel box. Pier Foundation: Shown on concrete piers (the note allows the container to sit up to 1'-6" above grade); foundation sheets included.

Layout & Specs

  • Container: One 20ft high cube (approx. 160 sq ft)
  • Rooms: Sauna, cold plunge, open studio
  • Entry: Swing door on the long side; container doors at the studio end
  • Foundation: Concrete piers
  • Style: Wellness studio / spa container

Plan Set Includes

  • 14 sheets, PDF, printable
  • Cover sheet with design criteria and code references
  • Floor plan, four elevations, general notes
  • Electrical notes and plan, mechanical notes and plan
  • Plumbing specs, details and notes
  • Foundation plan, foundation notes, structural details

Perfect For

  • Backyard spa or wellness room
  • Yoga, pilates or massage studio
  • Gym with sauna and cold plunge
  • Airbnb amenity building
  • Retreat centers and wellness businesses

Pre-designed and pre-engineered as a concept set; site-specific engineering, local code adoption and a PE seal are available from Oasis Engineering for your jurisdiction. Sauna stove and plunge equipment are owner-selected; follow the manufacturer's clearances and venting.

Index of Sheets

  • Cover Sheet C.0
  • Floor Plan & Elevations A.1
  • General Notes A.2
  • Electrical Notes E.1
  • Electrical Plan E.2
  • Mechanical Notes M.1
  • Mechanical Plan M.2
  • Plumbing Specs P.1
  • Plumbing Details & Notes P.2
  • Plumbing Details P.3
  • Foundation Plan S.1
  • Foundation General Notes S.2
  • Structural Details S.3