CMM Stair Rail Calculator

CMM, Inc.

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About this app

This is a specialized app for contractors building picket-fence stair rails. The app calculates the sizes and positions of the holes to cut, as well as other useful details.

This app calculates the following information for stair rails:
- Rise
- Run
- Angle
- Rail length
- Spacing between pickets
- Number of pickets
- Spacing between holes on rail
- Hole height

Convenient diagrams make it easy to enter your measurements in the app.

After doing a calculation, simply tap the Share button to share your results (via text or email), save them to a note-taking app, or copy them to the clipboard.

For many years, CMM has been a nationwide leader in industrial automation equipment for fence and rail manufacturing. Our MotionFORCE software is in use on thousands of automated routing machines across the United States and worldwide. Now, with this app, we're pleased to offer one of the features of MotionFORCE completely free!

Stay tuned for more exciting apps from CMM!

What’s new

- Security updates

- New app icon

- Based on user feedback, we've added a "fractional inches" setting in the Results screen.

- Minor wording change: "Picket width" is now called "Picket size" for better consistency with CMM's MotionFORCE software.