Building codes generally suggest at least 6 ft.
Staircase for 8 foot ceiling.
Rounded up that becomes 15.
While measurements of length are conventionally longer than those of width when considering rectangles in the case of steps the width is usually.
Multiply the 15 needed treads by 10 inches and you get 150 inches or 12 feet 6 inches.
Or to work out how many steps you need take your ceiling height and divide by let s say 16 to start with.
Stair width is measured from edge to edge of each side of the tread perpendicular to tread length.
Plan a typical staircase for a house with an 8 foot ceiling at 3 feet wide.
If your equation equals a non whole number such as 12.
Once again this is not equally divisible by 7 5 but it yields 16 risers.
It must be between 4 to 8 inches tall according to the 2010 california building code.
A staircase takes up a lot of room on both the lower and upper floors requiring careful consideration of the location.
For an eight foot wall height figure on a 14 foot long footprint for a straight staircase.
The unit rise height is how tall you want your stairs.
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The result is the number of risers required.
For example if the total rise is 120 inches divide 120 by 8 1 4 to obtain 14 54.
If you have nine foot high walls on the first floor your total height is 119 and 1 8 inches.
To calculate the run of the stairs simply multiply the tread dimension ensure this doesn t include the nose see below by the number of steps.