ᐅ Is a staircase layout with two quarter turns plus a landing possible within a maximum area of 2.4 by 2.4 meters?

Hello everyone,

We have planned a quarter-turn staircase. It needs to cover a height of 2.95 m (9.68 ft). Space requirement: 1.8 m by 2 m (5.9 ft by 6.6 ft).

This seems to me like a code-compliant main staircase with sufficient dimensions. Any opinions?

However, we would prefer a staircase with landings. To make better use of the space, I would like to create two 1/4 turns with landings at each corner of the staircase. How much space do we need for this? Unfortunately, I can’t find any calculator for this.

Is it generally mandatory to follow code-compliant staircase dimensions, or is it possible to deviate within certain limits?

I would appreciate any suggestions!

Best regards,
mertmk3

Here are the measurements for the staircase:

17 risers
17.35/24.6

Can someone tell me if a three-flight staircase with 7+3+7 = 17 steps and two landings, with a stair width of 90cm (35 inches) and landing depth, will work?

Thanks!

If the staircase were curved, about four risers could fit within the space of such a landing. In general, I would say the floor area occupied by the landings should be considered entirely additional, also when planning the overall dimensions.

What kind of awkward walking experience do you want to create with the staircase? A consistent step rhythm and uniformity of the steps go hand in hand. A tread depth of 90cm (35 inches) compared to 24.6cm (9.7 inches) would be roughly 3.66 tread depths; 70.7cm (28 inches) distance along the radius corresponds to 2.87 tread depths. Besides that, this rise-to-run ratio of 17.35cm (6.8 inches) rise divided by 24.6cm (9.7 inches) run results in a stride length of 59.3cm (23.3 inches), which in my opinion is borderline steep; 62–63cm (24.4–24.8 inches) is generally recommended.

---

https://www.instagram.com/11antgmxde/
https://www.linkedin.com/company/bauen-jetzt/

Thank you for the advice. So the rise is fine, but the tread should be extended? I followed the standard, and here the step length was indicated as "green" starting from 59cm (23 inches).

With a depth of 220cm (87 inches), keeping the same rise and 17 steps, the step length would be 61.8cm (24 inches). Would that be acceptable?

What do you think about 16 x 18.43 / 26?

---

https://www.instagram.com/11antgmxde/
https://www.linkedin.com/company/bauen-jetzt/

https://www.hausbau-forum.de/threads/grundrissplanung-unbedingt-vor-Beitrag-Erstellung-lesen.11714/

Here you will find the minimum dimensions of a main staircase in residential buildings.

Regards, Yvonne