# BalusterPro

> Tool for calculating equal spacing for balusters, slats, and boards. (iPhone/iPad app by Greg Gabrio.)

- Source: https://appshunter.io/ios/app/balusterpro/id304928739 (this page in markdown: same URL + `.md`)
- Developer: [Greg Gabrio](https://appshunter.io/developer/304928742)
- Category: Utilities, Productivity
- Price: $2.99
- Rating: 4.20/5 from 17 App Store ratings · 59 written reviews indexed
- Age rating: 4+
- Requires: iOS 12.0 · 5 MB
- Languages: American English
- Released: 2009-02-19
- Data updated: 2026-09-05
- Monetization: paid
- User reviews in markdown: https://appshunter.io/ios/app/balusterpro/id304928739/reviews.md

## What is BalusterPro?

***Named one of the top 100 new home products for 2011 in This Old House magazine***


BalusterPro is a unique and handy tool designed for carpenters and woodworkers, but useful for do-it-yourselfers and homeowners alike. BalusterPro makes the chore of calculating spacing of handrail balusters a quick and elementary task.  It can also be used for any job requiring equal spacing between boards or slats.  Use for picket fences, bench/chair backs,decking or column flutes.
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What users are saying:

Punch in staircase and handrail dimensions, choose the configuration, and this app saves you the tedium of calculating baluster spacing. Hallelujah.

This Old House Magazine


BalusterPro is an awesome app and can be used for a multitude of layout tasks, at your desk, on the job, in your car—wherever your phone goes, and it only costs a few bucks.

Gary Katz - Master finish carpenter and publisher of THISiscarpentry.com


BalusterPro makes building that stairway more heavenly

homefixated.com
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Instructions for Use:

BalusterPro offers calculations for six different common handrail situations which you may encounter.  First, tap the settings button to select your measurement input method, then select the desired type of baluster installation. Use the keypad or sliders to enter your measurements for ‘Run Length’ (distance between the newel posts) and the ‘Baluster Width.’  Finally, just drag the ‘Balusters Needed’ slider to see your required number of balusters. As you adjust the ‘Balusters Needed’ slider, the “Spacing Between Balusters” will simultaneously update. Stop when your ‘Spacing Between Balusters’ meets your specific code requirements.  Tap the view button to see a list of all the centers and edges of the balusters. No longer will you need to keep pressing the add button on your traditional calculator to list your centers....they are all shown on one screen! It’s just that simple! You can display your measurements by selecting 1/16, 1/32, or metric on the main screen to determine your precision level.  If desired you can also display your result down to 1/64.  To do this, once you have done your calculation, simply tap the 'Spacing Between Balusters' result and if possible it will be further reduced down to 1/64 and displayed for 5 seconds.  This is handy if you want to cut all your fillets at once as it nearly eliminates cumulative error.  Tap the speak buttons at the bottoms of the list columns to have the app speak your measurements. 

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Check out my other construction related apps...StairBuilderPro for a stair stringer layout tool & TilePro for a simple tile layout tool.
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Check out the video demo at my website to see BalusterPro in action.

## Key features

- Calculate baluster spacing
- Input handrail dimensions
- Adjust balusters needed slider
- View spacing between balusters
- Display centers and edges
- Select measurement precision (1/16, 1/32, metric, 1/64)
- Audio output of measurements

## Chart rankings

- #75 in Top Paid · Utilities (US App Store)

## Recent user reviews (10 of 59)

All indexed reviews: https://appshunter.io/ios/app/balusterpro/id304928739/reviews.md

### 5/5 — Best purchase!

*2025-07-24, version 3.0.1*

I’ve never left an Apple review but had to for this app. Made installing my balusters on an angled rake so easy. I’ve never done this type of work before and this made it a no brainer.

### 1/5 — Don’t have more angles

*2025-06-28, version 3.0.1*

Paid for nothing, dose not go past 40 degree angle I have a 55 degree angle on my stairs. Wasted my money for nothing

### 2/5 — Seemed great

*2025-03-09, version 3.0*

The fatal flaw of your app is the limit on angles. I have an older house and the stairs are 51 degrees, your app wouldn’t allow me to enter anything above 40 if I remember correctly. Loosen your tolerance!

### 5/5 — Love it

*2024-12-03, version 3.0*

Very useful app. Definitely due for an update. It’s very slow and kicks you out randomly.

### 5/5 — Annett Construction LLC

*2022-06-17, version 3.0*

Have been using this app since the beginning when developed. Greg even sent me an email when he developed for android phone and asked for any input. I’m a trim carpenter and have used this app on hundreds of stairs. Such a big time saver. Not only works on balusters,but beams, decorative moldings on walls and other uses. Great app and time saver. Thanks

### 3/5 — Not compatible with metric units

*2021-08-02, version 3.0*

It’s an okay, basic app. Works as described.  It could use a few upgrades. 
1 inch = 25.4mm. It only allows you to put in whole numbers for metric. 
It would be nice to have a visualization tool,  so you can see how the balusters would look between the post. 
It would be nice to have the option to start with a center baluster and then space out evenly in each direction.

### 1/5 — Use less

*2021-05-02, version 3.0*

Their isn’t no way to enter the center measurement and when you tap on view tab, it kicks you right out of the app.

### 1/5 — no way to enter on center measurement . pretty much makes it useless

*2021-03-26, version 3.0*

awful

### 5/5 — Years of Consistent Successful Use

*2020-12-17, version 3.0*

Apps don’t get more useful than this one. All those calculations nobody wants to make are made for you. Not only does this app work perfectly for balusters indoors and out, it gives you the layout for any project with spaced components. Then it reads you the numbers so you can mark with both hands.

### 5/5 — Excellent App!

*2020-07-23, version 3.0*

I just started using this app but so far I think it's terrific. It pretty much matches up with my own recipe to calculate baluster spacing but saves me all those math steps.

## Frequently asked questions about BalusterPro

### What does BalusterPro do?

BalusterPro is a tool designed to simplify the calculation of spacing for handrail balusters and any other project requiring equal spacing between boards or slats. It helps users quickly determine the correct measurements for tasks like building picket fences, benches, or decking.

### How do I use BalusterPro to calculate spacing?

First, select your measurement input method and the desired baluster installation type. Then, enter your 'Run Length' and 'Baluster Width' using the keypad or sliders. Adjust the 'Balusters Needed' slider, and the 'Spacing Between Balusters' will update simultaneously until it meets your code requirements.

### What is the cost of BalusterPro?

The application is available for a small one-time purchase price, described as costing 'a few bucks' by users. This makes it an affordable tool for both professionals and DIYers.

### What devices is BalusterPro compatible with?

The app is designed to be used on mobile devices, as indicated by its availability as a mobile application. It can be used on the go, wherever your phone is.

### Can BalusterPro help with specific building codes?

Yes, BalusterPro is designed to help users meet specific code requirements. By adjusting the 'Balusters Needed' slider, users can find a 'Spacing Between Balusters' that complies with their local building codes.

## Version history (last 5 releases)

### 3.0.1 — 2025-04-04

Fixed an issue with the speak feature.  Minor bug fixes.

### 3.0 — 2015-05-29

This app has been updated by Apple to display the Apple Watch app icon.

Added a voice feature where the app will read your layout measurements to you one by one. Start the speak feature..pull your tape and go! No need to keep looking back at your phone.
Increased maximum stair angle.
Bug fixes

### 2.0.3 — 2011-01-02

Fixed an incorrect reading that occurred on some devices.

### 2.0.2 — 2010-12-21

In addition to the recently added keypad, you will now have the ability to display 'spacing between balusters' to 1/64th precision.  Useful if you wish to cut all your fillets at once as it nearly eliminates cumulative error. Minor bug fix.

### 2.0.1 — 2010-12-01

Added a keypad to enter measurements, all metric measurements are now in millimeters only, added increment buttons for the 'balusters needed' slider...add or subtract balusters from your count by tapping a button.

## Apps similar to BalusterPro

| App | Rating | Price | Category |
| --- | --- | --- | --- |
| [Baluster Calculator Elite](https://appshunter.io/ios/app/baluster-calculator-elite/id689888381) | 4.9 (359) | $8.99 | Utilities |
| [Stair Stringer](https://appshunter.io/ios/app/stair-stringer/id1550828339) | 4.8 (83) | $1.99 | Utilities |
| [Even Spacing Calculator](https://appshunter.io/ios/app/even-spacing-calculator/id1597748322) | 4.2 (23) | $2.99 | Utilities |
| [Crown Calc Elite](https://appshunter.io/ios/app/crown-calc-elite/id733497099) | 4.8 (115) | $4.99 | Utilities |
| [BuildCalc](https://appshunter.io/ios/app/buildcalc/id333369423) | 4.7 (69) | $24.99 | Utilities |
| [CMM Stair Rail Calculator](https://appshunter.io/ios/app/cmm-stair-rail-calculator/id1610352465) | — | Free | Utilities |

## More apps by Greg Gabrio

- [StairBuilderPro](https://appshunter.io/ios/app/stairbuilderpro/id576147785)
- [TilePro](https://appshunter.io/ios/app/tilepro/id603395106)

All apps by Greg Gabrio: https://appshunter.io/developer/304928742

## Related topics

[baluster calculator elite](https://appshunter.io/ios/topics/baluster-calculator-elite) · [baluster spacing calculator](https://appshunter.io/ios/topics/baluster-spacing-calculator) · [baluster calculator](https://appshunter.io/ios/topics/baluster-calculator)

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-09-05.*