Triangulation tool

The Triangulation tool allows you to calculate the angle of the turn of your stair based on three dimensions you can take on-site that together form a triangle.

To access this tool, go to Tools > Triangulation:

First, we need to take the three measurements shown below:

These are:

• Length 1 from a specific point (a) along the first wall to the turn
• Length 2 from a specific point (b) along the second wall to the turn
• Diagonal length 3 from point a to b (the hypotenuse)

If these are added to the tool, the angle of the turn is calculated.

Here we show the triangulation tool with 3 classic dimensions (ratio 6:8:10) that output an angle of 90°:

• Length 1 = 600mm
• Length 2 = 800mm
• Length 3 = 1000mm
• Angle of the turn (between lengths 1 and 2) = 90°

Let’s take a different set of measurements, resulting in an angle of 84.91°:

This angle can now be used to calculate the stair very easily in StairDesigner as shown with the following stair in the multi-flight window:

Note that there is a button inside this window to quickly access the Triangulation tool.

As usual, it’s also easy to modify the angle of the turn in a pre-designed stair in the Properties menu.