Does a pass mean the layout meets code?
No. A pass only means the entered clearance meets the common reference minimum CrewMeasure checks against. Local code adoption and amendments still govern.
Bathroom Layout Calculator
Check fixture clearances against common reference minimums.
Enter the remaining clearances to check this layout — nothing is judged until it is measured.
Toilet clearances
Side clearance is measured from the toilet's centerline; front clearance is the clear floor space ahead of the bowl.
Shower
Interior shower stall dimensions and clear floor space in front of it. IRC P2708.1 wants 30 in minimum each way at 900 sq in, or 25 in minimum each way at 1,300 sq in.
Lavatory and ceiling
Clear floor space in front of the lavatory, and the finished ceiling height.
Enter the remaining clearances to check this layout — nothing is judged until it is measured.
Bathroom clearance results
Warnings
- ERROR Enter the distance from the toilet's centerline to the nearest finished wall, partition, vanity or fixture.
- ERROR Enter the clear space in front of the toilet.
- ERROR Enter the shower width, measured to the finished interior surfaces.
- ERROR Enter the shower depth, measured to the finished interior surfaces.
- ERROR Enter the clear space in front of the shower opening.
- ERROR Enter the clear space in front of the lavatory.
- ERROR Enter the ceiling height.
- INFO Checked against the 2021 IRC. Your jurisdiction may have adopted a different edition or amended it, and an accessible (ADA / ICC A117.1) bathroom is a different and larger set of clearances this screen does not check. Verify locally before building.
Detail values
- Toilet side clearance
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- Toilet front clearance
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- Shower size
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- Shower front clearance
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- Lavatory front clearance
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- Ceiling height
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Assumptions
- Code edition: 2021 IRC (residential)
- Toilet side clearance: 15 in minimum, centerline to wall, partition, vanity or fixture (IRC R307.1 / Figure R307.1, with the written dimensions in P2705.1)
- Toilet front clearance: 21 in minimum clear (IRC R307.1 / Figure R307.1)
- Shower compartment: 30 in minimum dimension and 900 sq in minimum area, or 25 in and 1300 sq in under the exception (IRC P2708.1)
- Shower front clearance: 24 in minimum clear at the opening (IRC R307.1 / Figure R307.1)
- Lavatory front clearance: 21 in minimum clear (IRC R307.1 / Figure R307.1)
- Ceiling height: 80 in minimum, 6 ft 8 in (IRC R305.1)
Formula details
- Shower compartment: min(width, depth) >= 30 in and width x depth >= 900 sq in, or min(width, depth) >= 25 in and width x depth >= 1300 sq in
IRC P2708.1 and its exception. Both are measured to the finished interior surfaces, exclusive of valves, shower heads, soap dishes and grab bars.
Material List
About this calculator
Enter fixture positions and CrewMeasure returns a pass or fail clearance check for each fixture, with the reference distance used shown alongside your entry.
FAQ
Which fixtures are checked?
Water closet, lavatory, and shower or tub clearances are checked using the values you enter for each fixture.
Can I adjust the reference clearance values?
The reference minimums are shown next to each result so you can compare them against your locally adopted code before relying on a pass result.
Disclaimer
This is a general clearance reference only. Local code amendments and accessibility requirements must be verified locally before finalizing a layout.