Does this site store data on a server?

No. Saved projects use browser local storage in this static build.

Support

FAQ

Questions and limitations for Stair Riser Run Calculator.

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FamilyCAD Studio

ExportCopy / JSON

FAQ

Is Stair Riser Run Calculator free?

Yes. This version is a free static tool with AdSense and browser-side project storage.

Does it send my inputs to a server?

No. Inputs and saved projects stay in the browser for this static build.

Can I use the output professionally?

Use it as a draft or review aid. Final use still needs qualified professional judgment.