ᐅ Straight Staircase for a Single-Family Home: Are the Dimensions Correct?

Dear house building community,

We are planning a straight staircase for our single-family house to connect the living-dining-kitchen area with the upper floor. In consultation with the architect, we currently have the following dimensions:
16 risers
Riser height: 18.6cm (7.3 inches)
Tread depth: 27.0cm (10.6 inches)

We found the following terms online:
Comfort rule
Tread depth – riser height = 12
27 – 18.6 = 8.4
Stride rule
2 x riser height + tread depth = about 63 centimeters
2 x 18.6 + 27 = 64.2
Safety rule
Riser height + tread depth = 46 centimeters
18.6 + 27 = 45.6

We roughly meet the stride and safety rules, but it seems we significantly deviate from the comfort rule.
What do you think of these dimensions? Are there any practical experiences you could share?

Thank you very much and best regards,
Peter

Well, you are 0.6 cm (0.24 inches) taller than optimal and 1 cm (0.4 inches) shorter than ideal. This means the staircase is no longer perfect, but it is still good and safe to use. It’s acceptable as is.

Is it still comfortable? We just didn’t want it too far south so that the dining area isn’t too separated from the living area.

These are standard dimensions that are optimal for average people. In principle, the staircase with your dimensions is still very comfortable for average individuals. You just need to lift your leg slightly higher and place your foot a bit more precisely. For people with very large feet or very short stature, the standard dimensions are also not comfortable.

How long will your staircase be for which floor-to-floor height?

I understand the dimensions of the steps to be 3 m x 4.32 m (9.8 ft x 14.2 ft).