ᐅ Straight Staircase for a Single-Family Home: Are the Dimensions Correct?
Created on: 23 May 2021 14:08
A
Aracnor
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
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
Myrna_Loy schrieb:
3 m x 4.32 m (9.8 ft x 14.2 ft) if I take the dimensions of the steps. Exactly, that would be about right. I think 2.97 m x 4.32 m (9.7 ft x 14.2 ft) gross.
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Myrna_Loy23 May 2021 15:244.48 m (14.7 ft) does not fit? Then it would be within the standard.
Myrna_Loy schrieb:
4.48 m (14.7 ft) doesn’t fit? Then it would be within the standard.Good question... to make it comfortable, we would need to add another step and extend the staircase to 4.8 m (15.7 ft).| INPUT | |||||
| Stair height | H | = 2.97 | m | ||
| Stair run (depth) | T | = 4.8 | m | ||
| Number of steps | n | = 17 |
| Stride length | s | = 0.63 | m | ||
| Safety measure | S | = 0.46 | m | ||
| Comfort measure | B | = 0.11 | m |
That would leave us with only about 1.9 m (6.2 ft) between the staircase and the terrace door instead of approximately 2.4 m (7.9 ft)... This would be the passageway between the dining area and living room...
Aracnor schrieb:
We have now found the following terms on the internet:... and if you keep googling, you’ll find other reference values. But reference values are just guidelines and nothing definitive! I only know the 19/26 guideline. And that should be enough so as not to confuse the builder.Aracnor schrieb:
Is it still comfortable, though?@Myrna_Loy already hit the nail on the head: it varies for everyone and is subjective. A lot of math that doesn’t really help.Aracnor schrieb:
so that it is cozy,Cozy can mean uncomfortable with stairs. This can be observed with steps that are too low or with too wide a tread. Who plans this badly that you lose confidence?
A good rule of thumb for stairs with a total rise of 280cm (110 inches) is 15 steps. Fourteen (in the case of Viebrockhaus duplexes) is already exhausting.
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BauFamily24 May 2021 08:51A depth of 4 meters (13 feet) with a height of 3 meters (10 feet) would therefore be uncomfortable both objectively and subjectively for anyone?
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Myrna_Loy24 May 2021 08:59BauFamily schrieb:
A depth of 4 meters (13 ft) with a height of 3 meters (10 ft) would therefore be uncomfortable both objectively and subjectively for anyone?Yes, and it would also no longer meet the safety standards according to DIN.