Hello, I am considering building a staircase but have limited space.
I have 440cm wall-to-wall. The staircase opening is estimated to be 260x100cm.
And about 240cm high. I am calculating a staircase with 12 steps, 26cm step depth, and 18.5cm step height.
And I want it to be straight. My question is: is 90cm platform enough above and below the staircase?
So 440-260=180 and then 180/2=90cm
Are there any rules for this? I don't want it to feel cramped either.
I have 440cm wall-to-wall. The staircase opening is estimated to be 260x100cm.
And about 240cm high. I am calculating a staircase with 12 steps, 26cm step depth, and 18.5cm step height.
And I want it to be straight. My question is: is 90cm platform enough above and below the staircase?
So 440-260=180 and then 180/2=90cm
Are there any rules for this? I don't want it to feel cramped either.
the depth plus two times the height should be around 63 cm. Haven't calculated for you...
The formula that Åsa Lund mentions, the staircase formula, is an important starting point. To assess the possibilities of creating a good staircase, you also need to know the staircase opening's placement in the plan. Is 240 cm the floor height, i.e., the total height of the staircase?
Yes, I have already calculated the stairs with a stair calculator.
As I mentioned above, the step depth is 26cm and the height is 18.5cm. 26+18.5+18.5=63, so it is exactly according to the formula you mentioned.
That's not what I'm wondering about, but rather the space above and below the stairs, i.e., the floor on the upper floor just in front of the stairs and the floor on the lower floor just in front of the stairs. This area would be 90x90, and what I'm wondering is if this is a good measurement with enough space to maneuver, or if there are any guidelines to follow.
As I mentioned above, the step depth is 26cm and the height is 18.5cm. 26+18.5+18.5=63, so it is exactly according to the formula you mentioned.
That's not what I'm wondering about, but rather the space above and below the stairs, i.e., the floor on the upper floor just in front of the stairs and the floor on the lower floor just in front of the stairs. This area would be 90x90, and what I'm wondering is if this is a good measurement with enough space to maneuver, or if there are any guidelines to follow.
You want to make a staircase with a straight run that lands on a landing that is 90x90 cm. From this landing, should one then turn left or right? Is that correct?
Then I think it's a better solution to make a staircase where the upper steps turn so that you can continue straight ahead when you come up. An L-shaped staircase but the L is missing an arm.
How did you calculate that?F fezz said:
12 steps, step height 18.2 = 222 cm, feels like the staircase doesn't reach the next floor, kind of.
And then 12 steps, step depth 26 cm = 312 cm, feels like the staircase doesn't fit in the stairwell you have.
I think you really need to recalculate, to then realize you need an L-stair.
I realized right away that something was wrong since this staircase would be at least as easy to walk as mine, despite you having a stairwell a meter shorter than mine.
2400/185=13 steps in the stairs
13*260=3380 mm long staircase
Will it be 500 mm on each side?
L-shaped stairs might not be a bad suggestion in my eyes
13*260=3380 mm long staircase
Will it be 500 mm on each side?
L-shaped stairs might not be a bad suggestion in my eyes
Well, it depends on a few more parameters than that, for example, the steps in my stair calculation have an overhang of 42mm which in turn creates the step depth of 26 cm. This means the staircase can be 260 instead of 312 cm. (I mentioned staircase opening before, but I can basically have it at 350 cm if I want)Mikael_L said:
How did you calculate it then?
12 steps, step height 18.2 = 222 cm, feels like the staircase doesn’t reach the next floor, kind of.
And then 12 steps, step depth 26 cm = 312 cm, feels like the staircase doesn’t fit in the stairwell you have.
I think you'll have to recalculate and then realize you need an L-shaped staircase.
I immediately realized something was wrong, as this staircase would be at least as easy to walk as mine, despite you having a stairwell a meter shorter than mine.
I've recalculated many times already and am still pretty sure I want a straight run.
I also have 2 existing staircases that are significantly more "uncomfortable," so taking that into account, the staircase I've calculated on would be more comfortable.
The alternative could also be to make it more uncomfortable like the existing staircases I have.
(Which I personally don't find particularly uncomfortable.) And in that way get a larger turning area/landing.
In any case, my question is still just whether 90x90 is a good turning area.
Then an important question is whether it is 240cm in ceiling height, or 240cm in floor height. Because this could mean one or two more steps.
90x90 is an OK turning area.
Depending on other design aspects around it, it might somewhat limit how large objects can be moved up/down the stairs. But this also applies to an L-shaped stair.
You could see that 90x90 area as a landing as well, and it's common to have the same side as the stair width on landings in regular staircases in small houses.
Depending on other design aspects around it, it might somewhat limit how large objects can be moved up/down the stairs. But this also applies to an L-shaped stair.
You could see that 90x90 area as a landing as well, and it's common to have the same side as the stair width on landings in regular staircases in small houses.
One should calculate the horizontal measure from stair nose to stair nose in the formula. The actual step itself can be as large as desired...
I get it to 13 steps (2400/185 in height)
I get it to 13 steps (2400/185 in height)
The stairwell is definitely too short to accommodate a straight-run staircase that "ordinary people" find easy to walk.
So either you're comfortable with a staircase that's a cross between a ladder and a staircase, or it will be an L-shaped staircase.
So either you're comfortable with a staircase that's a cross between a ladder and a staircase, or it will be an L-shaped staircase.