How to Get Angles On Stair Railings

When you are putting in a new stair railing, it's beneficial to understand the degree of the angle necessary. The angle of the stair railing ensures that it is going to be parallel to the stairs below, and figuring out the angle necessary is simple using a measuring tape and a basic scientific calender. Learn the angle at which your stair railing needs to be mounted to ensure that the railing installation goes smoothly.

Measuring tape
Scientific calculator

Instructions

- 1
  Measure the height of one of your stair’s risers using a measuring tape. The riser is the part of the stair that gives it its height. This is the rise of the stairs.
- 2
  Measure the length of one of your stair’s treads. The tread is the part of the stair that you step on. This is the run of the stairs.
- 3
  Set your scientific calculator to give its answers in degrees by pushing the DRG button.
- 4
  Press the arc-tangent button, also known as the inverse tangent button.
- 5
  Type in the rise of your stairs.
- 6
  Press the division button.
- 7
  Type in the run of your stairs.
- 8
  Press the “equals” button. This is a measurement of the angle that you need for your stair railing.

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