Staircases take up a large volume of space due to the fact that two floor are involved.
Minimum floor space for stairs.
The code establishes a maximum vertical height of 147 inches 12 feet 3 inches between landings or floor levels for a flight of stairs.
A flight of stairs shall not have a vertical rise larger than 12 feet 3658 mm between floor levels or landings.
And that volume is not all that flexible since the bottom half of a staircase can t be separated from the top half.
If the distance between floor levels exceed 147 inches the flight of stairs would require a level landing somewhere in between to break up the flight of stairs.
Under staircase dimensions mistake i ve come across several homes where this staircase design mistake has been made.
But you need to go above the ceiling to the top of the next floor.
The most common mistakes people make in determining their stair size in terms of height is that they measure floor to ceiling height instead of floor to floor height which is what they really need.
Floor to ceiling is the length between the top of your floor and the ceiling.
Check the total run length to determine if any stairs will be located underneath the second floor.
The staircase is a very important design element of your home.
The minimum staircase width is the same as the minimum circulation zone width of 3ft 0 91m.