Rise = 7

Run = 9

Type = 1

Baluster Width =

Spacing Limit = 4

Offset = 0

Span =

#Balusters = 0

Angle of Incline = 0

First Fillet =

Spacing (fillet length) =

Centers =

Baluster Centers =

fc =

bnob =

bspt =

snob =

nob

sspt =

This template was designed to speed up the process of installing Balusters. Especially when using fillets as spacers between Balusters.

[https://poweronecalc.s3.us-east-1.amazonaws.com/templates/baluster_layout2.png]

- Rise: Balcony or Rake rise. Used to convert the horizontal values to measurements used for the Rake and provide an angle to cut fillets.

- Run: Balcony or Rake run. Used to convert the horizontal values to measurements used for the Rake and provide an angle to cut fillets.

- Type: Calculations are for a balcony or rake.

- Baluster Width: Baluster width measured from the narrowest part of the baluster.

- Spacing Limit: Maximum distance allowed between balusters. This dimension is determined by local building codes.

- Offset: Offset to the first baluster. If the newel has no turning or it's between walls then set to 0. If measuring off a wall also set to 0.

- Span: Measured by following along the diagonal of the Rake. When calculating a balcony, the measurement between newels and wall at the narrowest part of the newel.

- #Balusters: Calculated or entered number of balusters. Tap [icon--app-equals-known] to return to the calculated value.

- Angle of Incline: How steep the stairs are and provides an angle to cut fillets used on the diagonal of the Rake.

- First Fillet: The First Fillet’s position is adjusted by the Offset and Baluster Width to preserve the Spacing Limit against the turning of a Newel.

- Spacing (Fillet Length): Slope length measurement that maintains the horizontal limit. The limit is the run of a right triangle and the Spacing is the hypotenuse.

- Centers: Space between baluster centers used for marking holes.

- Baluster Centers: Center of each baluster. Stretch a tape across the nosing up against a newel or wall and mark the nosing with the measurements located in each baluster center.

[https://poweronecalc.s3.us-east-1.amazonaws.com/templates/baluster_layout1.png]

It is necessary to maintain accuracy when cutting fillets. This template is set to 64ths. It is not recommended to reduce that in the template settings. (Note that PowerOne may reduce on its own, which only happens when it is safe to do so without losing accuracy.)

For example, your calculation says you need 16 balusters to fill a space between newels. If calculated with 16th's then the spacing is calculated as 3&1/2 inches. However if you choose to use 64th's instead, per this template, then you would have seen it is actually closer to 3&17/32 inches. At 16th's each baluster will be off by only 1/16th of an inch. However, the last baluster could be off by as much as 1/2 inches.

How's the math work? Each baluster is off by 1/32nd and this accumulates. The first was out of position a 1/32nd, the second was out by a 1/16th, the third by 3/32, etc. Mathematically, you have 16 balusters and 17 spaces: 17 × 1/32 = 17/32 of an inch. All balusters are 3&1/2 inches apart except the last one, which is 4&1/32 inches all because you lost a 32nd on each space.

The error is small but it compounds into a larger error at the end. However, this can be minimized with better accuracy. Cut the first fillet to the nearest 64th then set the saw up to cut multiple fillets all the same size.

Using 64th's will not ensure perfect results either, but it will be much closer since most spans are less than 8ft.

Calculate a rake baluster with a 7" rise and 9" run. The balusters are 5/8" wide, have a spacing limit of 4", offset of 5/8", and a span of 3'7&1/2".

Type (Balcony or Rake)

-Rise: 7in

-Run: 9in

-Type: Balcony

Baluster Measurements

-Baluster Width: 5/8in

-Spacing Limit: 4in

-Offset: 5/8in

-Span: 3ft 7&1/2in

Results

-Number of Balusters: 9

-Angle of Incline: 0.0°

-First Fillet: 3&5/32in

-Spacing (fillet length): 3&25/32in

-Centers: 4&13/32in

-Baluster Centers:

3&1/2in

7&7/8in

1ft 5/16in or 12&5/16in

1ft 4&11/16in or 16&11/16in

1ft 9&1/8in or 21&1/8in

2ft 1&9/16in or 25&9/16in

2ft 5&15/16in or 29&15/16in

2ft 10&3/8in or 34&3/8in

3ft 2&3/4in or 38&3/4in

Calculate the same for a balcony baluster with the same measurements.

Type (Balcony or Rake)

-Type: Rake

Results

-Number of Balusters: 7

-Angle of Incline: 37.9°

-First Fillet: 4&1/4in

-Spacing (fillet length): 4&3/4in

-Centers: 5&17/32in

-Baluster Centers List:

4&1/8in

9&7/8in

1ft 3&7/16in or 15&7/16in

1ft 8&15/15in or 20&15/16in

2ft 2&1/2in or 26&1/2in

2ft 8in or 32in

3ft 1&9/16in or 37&9/16in

Rise

Run

Type

Baluster Width

Spacing Limit

Offset

Span

#Balusters

Angle of Incline

First Fillet

Spacing (fillet length)

Centers

Baluster Centers

-------------

Baluster Spacing