stairs
I want to build stairs in rectangular area of 6 feet by 9 feet to reach ceiling which is 8 feet high above ground floor. Is it possible build such stairs?
If yes, then what would be height of steps? I want to mention that step size of stairs should be between 6 to 7 inch.
Stringers are the zigzag style angled beams that hold up conventional stairs.
They are used on each side ot the staircase and sometimes in the middle as well. They hold up the treads and the risers (the vertical boards) are attached to them.
Image 1 is basically floating treads on the stringers and using the risers as faces of drawer fronts. As the comments reflect, this is easily done when building a staircase, but quite difficult to retrofit. It also won't work if your treads are wider and there is a stringer (or the need for a stringer) in the middle.
Image 2 is a hybrid. There are no stringers on the near face of the staircase in the area of the drawers, and none in the middle. There may be conventional stringers above that level. It appears that there are horizontal and lateral supports built around the drawers and supporting the treads in place of stringers. Again, something that can be done when building a staircase, but not practical as a retrofit.
Image 3, based on a comment by John Smith, leaves the staircase intact, preserves the supporting stringers and gives you flexible storage possibilities.
The weight of materials in the drawers is not really a consideration unless you plan to store gold bars or some other really heavy materials. The weight of people on the stairs is much greater than any strain from linens or even books.
There are 2 ways to do this, the first way is in essence just cutting the wall at the top of the skirt board and capping it off and setting the handrail on top of the cap that is finishing off the cut wall, sounds a bit crude, but essentially that describes what you will have.
The up side to this is you will not need to do a floor repair, depending on where your wall ends where the newel will be.
The other way to do it is by removing the wall entirely, repairing the floor, removing the treads and risers, and set longer ones with return nosings on either side. and re-support the stairs with a new walls under the existing carriages.
This is the most work, but will give the best result in my opinion.
Jan. 2, 2014 edit
Here is the work I did in 1989 that shows what I did.
This one shows the best example of the effect I was trying to explain. I do not have a shot that shows how the handrail goes past the ceiling, but with a little imagination you could picture what the rail would have to do if the stairs were much wider at the bottom.
Edit #2
I did a little calculating to help, if it may
Best Answer
8' in 6" steps is 16 steps. If the tread is around 10" as is common, that's a little over 13'. If you divide the space in half to have 3' wide steps, with a half landing the same width, you only have 12' to play with suggesting that you'd need steps going round the end rather than a half landing. That's not common on a 180 degree bend (but is on a 90 degree bend).
However, 6" risers are rather shallow. Going just over the 7" risers you mention would allow you to make the climb in 14 steps which would work with a half landing the same wish as the steps.
There may be regulations to consider, and obviously you have to make an allowance on the width for banisters, but it should be possible for a competent builder to design something into the space.