Free 3D sauna planner

Plan your sauna before you cut a board

SaunaDesignPro is a free 3D sauna planner from Sauna Marketplace. Lay out the room in 3D, size the heater to its volume, and leave with framing drawings and a cut list for the sauna you drew.

Open the 3D sauna designerCompare sauna heaters

Start from a rectangle, L-shape, triangle, or beveled footprint and set the room to your real measurements. Place doors, windows, benches, ceilings, and flooring. Move a wall and the framing, cladding, and material list move with it.

The planner sizes the heater to your room volume from each heater's rated range, takes clearances from the manual for the exact heater you pick, places an intake and an exhaust for that heater family, and shows each bench level against the ceiling.

The build packet is generated from the same model: a floor plan, a framing elevation for each wall, a framing schedule and cut list, a stock-board cutting plan, a finish cut schedule, a materials schedule, and installation notes. The planner is free to use, with no account needed to start.

Price
Free, no account to start
Footprints
Rectangle, L-shape, triangle, beveled
Heater sizing
kW matched to room volume
Views
3D model, 2D floor plan, framing elevations, editable material list
Downloads
Build packet (PDF) with its materials schedule, framing cut list (CSV) and wall framing elevations (PNG)

See every board before you buy one

Design the sauna in 3D, walk through it, and check it before it becomes lumber. Every element stays tied to the same design, so moving a wall updates the framing, cladding, and material list.

  • Multiple doors and windows per wall
  • Obstruction modeling for columns, soffits, and chases
  • Framing, cladding, and material list that update as you edit
  • A 2D floor plan with real dimensions

Catch the costly mistakes on screen

A heater that is too small, a bench too close to the ceiling, a vent in the wrong place. Each is cheap to fix in the planner and expensive to fix once the walls are up.

  • Heater size matched to room volume, with the allowance its maker calls for when you add glass or build outdoors
  • Heater clearances from the manual for the exact heater you pick
  • An intake and an exhaust placed for the heater family you choose
  • Each bench level shown against the ceiling in the elevation view

See the drawings

The build packet is generated from the same model. Hand it to your builder or electrician, or attach it behind a stamped set. Outdoor designs add roof framing sheets.

  • Floor plan with every opening
  • Framing elevation for each wall
  • Framing schedule and cut list
  • Stock-board cutting plan and finish cut schedule

Build the wall in the right order

A vapor barrier on the wrong side, or boards with no air gap behind them, traps moisture inside the wall. The planner draws every framed wall with foil on the hot side, an air gap behind the cladding, and mineral wool in the bays.

Inside to outside: cladding, a furring air gap so boards dry from behind, aluminum foil on the hot side, studs with mineral wool, then sheathing, a weather barrier, and a rainscreen on outdoor builds.

A material list that follows the design

Specialty items come from Sauna Marketplace: cladding and trim, the heater with its control and stones, benches, vents, doors, windows, glass walls, and flooring. Framing lumber, insulation, furring strips, fasteners, and roof framing are listed for you to buy locally.

Frequently asked questions

Is SaunaDesignPro really free?

Yes. Plan as many saunas as you want, with no account to start, and download the build packet with its material list in any region. In the continental US, enter your ZIP code to see exact prices; elsewhere, you can ask for a quote for your region.

How do I vent an electric sauna?

It depends on the heater. Each maker publishes where the intake and exhaust go, and the planner places the vents for the heater family you choose. Check the sizes and positions against your heater's manual before you frame the openings.

Can my garage or basement become a good sauna?

Often, yes. Enter the real ceiling height and the planner sizes the heater to the room and checks the heater's clearances and minimum room height from its manual.

What do I get when the design is done?

The planner shows a 3D model you can walk through, a 2D floor plan with real dimensions, a framing elevation for each wall, and a material list you can edit. You can download the build packet (PDF) with the floor plan, framing elevations, cut list, cutting schedules, and materials schedule, plus the framing cut list (CSV) and each wall's framing elevation (PNG). The packet prints exact prices with a continental US ZIP code and price ranges without one.

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