Rating4 ★ / 5
OS Require2.2 and up
Author's NotesQuickly & easily calculate the spacing of handrail balusters


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

NOTE: The default minumum and maximum are easily changed in the preferences (Preferences>Slider Values).

BalusterPro is a unique tool designed for carpenters and woodworkers, but also useful for do-it-yourselfers and homeowners.

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.

-Flat and Stair Runs
-Tapered Balusters
-Inch or Metric

To use, enter the run length and baluster width and then slide the 'Balusters Needed' slider until 'Spacing Between Balusters' reaches a desired value (such as meeting code requirements). The number of balusters needed is displayed above the slider.

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

BalusterPro makes building that stairway more heavenly

carpentry carpenter construction contractor guard stair rail balcony woodworking bannister
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What's new

-Removed from fullscreen mode so the preferences menu is no longer hidden on certain devices
-Increased maximum stair angle to 50 degrees
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64 Total
5★ 42
4★ 4
3★ 6
2★ 5
1 ★ 8