Staircases come in every multi-level house. In the Dutch building code there is a substantial amount of text about staircases and their requirements. Complicated stuff actually, so designing and building staircases is a specialty. We deliver staircases in our houses, but we buy them, we do not design and build ourselves. Specialized factories can do a better job.
One requirement obviously is that every step has the exact same height. Sounds logical. But since during the build of a house small changes can be introduced (such as: a concrete floor being 10 mm higher than planned in the drawings), often the actual heights for the staircase are measured when the house is almost finished, and then the staircase is produced made-to-measure. Problem solved.
In Russia however they also have a different, faster system, see photo above. They often take a standard staircase from stock, and install it without any correction for floor heights. Such a staircase can be three centimeters short or long. No problem: the left-over step you can see at the bottom. See photos above and below.
If you walk down such a staircase in the dark it could end with an nasty stumble. That’s why the wrong left-over step usually is at the bottom. Because, you can stumble, but you will not tumble down the stairs and break your neck. Good thinking, clever design! Well, usually, sometimes the left-over step is at the top, see photo below…
Anyways, we outsource this specialty, so that we can provide you with first quality staircases.