Does anyone know the measurements of stairs?

Question

I would be so grateful if anyone had the sizes/measurements of stairs, take just one step from that 'staircase' for example, the length across?? the width?? and the height??

Answer 1

Normal stairs are from 45 degrees to 53 degrees inclination from the horizontal. Inclinations steeper than 53 degrees are referred to as ladders. Stairs for residential buildings are normally 48 inches wide with a run (horizontal width of the step) of 10 to 12 inches and a rise (height between steps) of 8 to 10 inches.

Answer 2

>Local building codes differ but most conform to the

  Uniform Building Code (UBC), specifically the 1997

  edition. Requirements for stairways are relatively few.

  There are no UBC specifics on riser less dimensions.

  Those items noted under STAIR TERMINOLOGY are restricted in public buildings as follows:

  

      RH    not less than 4.0 inches nor more than 7.0

            inches and the greatest RH shall not exceed

            the least on any flight by more than 3/8 inch.

      RUN   not less than 11.0 inches, of uniform size

            and shape except the largest RUN shall not

            exceed the least on any flight by more than

            3/8 inch.

>The maximum tread depth cannot exceed the minimum tread depth by more than 3/8 inch and the maximum riser height cannot exceed the minimum riser height by more than 3/8 inch.

http://www.hammerzone.com/archives/frame...

Answer 3

I would think the average stairs are about 4 feet wide (length across).  The step itself is probably 18 inches deep (the shelf on each stair that you stand on) and each step is 1 foot up from the previous.

Answer 4

Typical stairs use 11" treads and 7" risers.

Check your local building codes. Most building codes require minimum and maximum tread widths and will provide formulas for proper ratios of tread to rise.

Usually the risers are adjusted to fit the stairs into the height needed without being left with part of a step on the top or bottom. That calculation can be time consuming, just check everything twice.

Here is a discussion on how to do that calculation.

http://www.new-england-contractor.com/ne...

.