Measuring instructions

Measuring requires attention!

Stairs are often no bigger than the stairwell!

If the floor is higher than 3 meters, there may be 1 or 2 steps outside the stairwell.

Keep the stairs a few millimeters smaller (often houses are not 100% square).

Allow for sufficient headroom (keep an imaginary line of 2 metres above the stairs at least).

The larger the stairwell, the more comfort.