Free 3D steam-shower planner
See your steam shower before the tile goes up.
Set the finished dimensions, place the glass, bench, controls, fixtures, and steam heads, then get a source-linked preliminary KOHLER generator package in one live plan.
Free to use · No account required · US and metric · Preliminary planning only
3D + 2DLive room, plan, and elevation
Current pricingFrom $2,524.50 list ref.
Live checksEquipment, route, and placement
4-page PDFInputs, specification, sources, limits
How it works
From finished room to coordinated system.
Every decision stays connected to the same project, so changing the room changes the recommendation—not just the drawing.
- 01
Enter the enclosure
Set finished width, depth, height, surface, glass walls, door, bench, and ceiling slope.
- 02
Place every touchpoint
Position the fixture, control, steam head, generator location, and a second head when tandem equipment requires it.
- 03
Match the system
Watch the preliminary generator, electrical demand, controls, heads, finish compatibility, and route checks update live.
- 04
Take the plan with you
Copy a versioned share link or export a four-page planning record for early trade coordination.
Model the room
Design the whole enclosure, not just the generator.
Orbit the room in 3D, switch to a measured plan or elevation, and test the relationships that are expensive to discover after waterproofing begins.
- Door swing, glass, bench, and fixture layout
- Perspective, front, top, and steam-head views
- US and metric dimensions
- Undo, redo, reset, autosave, and share links
Drawing 02Measured floor plan
Scale 1:24
Preliminary equipment matchWithin documented range
KOHLERK-32326-NA
9 kW
- Finished room
- 160.0 ft³
- Published maximum
- 240 ft³
- Ceiling adjustment
- 0 sizes
- Electrical discussion
- 240 V / 60 A
- Generator list price
- $3,225.00 US reference
Direct source links travel with the result.
Size with boundaries
Sizing that knows where certainty ends.
SteamDesignPro follows the current KOHLER K-323xx capacity sequence and applies the documented ceiling guidance conservatively. When the room leaves the published range, the planner stops selecting equipment and calls for review.
- Finished room volume, not floor area
- Started-foot ceiling step above 8 ft
- Hard review boundary above 10 ft or 1,000 ft³
- No unpublished surface-material multiplier
Keep it connected
One live specification, all the way through.
Change the room or shower system and the preliminary generator, control, steam head, finish, circuits, drain pans, and routed-distance checks stay connected to the same project.
Tandem means tandem everywhere. Two generators, two dedicated circuits, two steam heads, and two drain pans remain visible throughout the plan.
Live specificationAnthem+ · linear head
Compatible package
- Generator
- K-32332-NA 18 kW tandem
- Digital adapter
- K-32311 1 required
- Steam heads
- K-32309 2 required
- Drain pans
- K-5559-NA 2 required
- Dedicated circuits
- 2 × 240 V / 60 A
Share the thinking
A better first meeting starts with the same plan.
The export captures the planning summary, 3D snapshot, measured plan and elevation, specification, every project input, assumptions, exclusions, coordination checklist, and direct official sources.
- Deterministic four-page PDF
- Source revisions and direct links
- Electrical, plumbing, and waterproofing discussion list
- Clear preliminary-planning limits
The right boundary
Useful enough to move the project forward. Honest enough to know what comes next.
THE PLANNER HELPS RESOLVE
- Preliminary generator sizing
- Enclosure geometry and fixture relationships
- Current control and steam-head compatibility
- Finish availability intersections
- Generator route and tandem coordination
- A shared, versioned project record
QUALIFIED PROFESSIONALS FINALIZE
- Electrical and plumbing design
- Waterproofing and vapor strategy
- Structure, accessibility, and permits
- Concealed routing and service access
- Local-code and AHJ requirements
- Final product and installation approval
Frequently asked
Before you start designing.
SteamDesignPro is deliberately focused: one clear planning workflow, current sourced equipment data, and no account wall.
Is SteamDesignPro free?
Yes. Start without an account, save locally in your browser, create a share link, and export the preliminary planning PDF.
Does it replace a contractor or licensed professional?
No. It is an early planning and coordination aid—not architectural, engineering, permit, waterproofing, electrical, plumbing, or installation documentation.
What can I design?
A rectangular steam-shower enclosure with configurable dimensions, door, glass, bench, surface, ceiling slope, fixture, control, steam-head placement, generator location, route distance, and finish.
Which equipment does it size today?
The current release documents KOHLER Invigoration K-323xx generators and compatible control and steam-head paths from cited primary sources.
Does it show real equipment pricing?
Yes. The designer shows a current KOHLER US list-price reference for the generator, drain pan, control or adapter, and steam head package it selects. Tax, freight, installation, electrical, plumbing, enclosure, and dealer pricing are separate.
What does the PDF include?
Four pages covering the summary, drawings, specification, project inputs, assumptions, exclusions, coordination checklist, sources, and planning limits.
Your room, first
Start with the room you actually have.
Build the enclosure, see the system respond, and leave with a plan everyone can discuss.
Design now