The result is the number of risers required.
Staircase for 8 foot ceiling.
It must be between 4 to 8 inches tall according to the 2010 california building code.
Once again this is not equally divisible by 7 5 but it yields 16 risers.
For example if the total rise is 120 inches divide 120 by 8 1 4 to obtain 14 54.
The unit rise height is how tall you want your stairs.
For an eight foot wall height figure on a 14 foot long footprint for a straight staircase.
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While measurements of length are conventionally longer than those of width when considering rectangles in the case of steps the width is usually.
Stair width is measured from edge to edge of each side of the tread perpendicular to tread length.
If you have nine foot high walls on the first floor your total height is 119 and 1 8 inches.
Multiply the 15 needed treads by 10 inches and you get 150 inches or 12 feet 6 inches.
A staircase takes up a lot of room on both the lower and upper floors requiring careful consideration of the location.
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.
Or to work out how many steps you need take your ceiling height and divide by let s say 16 to start with.
8 inches 203 2 cm of stair headroom.
Rounded up that becomes 15.
Plan a typical staircase for a house with an 8 foot ceiling at 3 feet wide.
The maximum permitted height of a riser is usually 8 1 4 inches so divide the total rise of the stairs by 8 1 4 and round up to the next whole number.