Average Staircase Length

This free stair calculator determines stair parameters such as rise total run and angle stringer length based on height run tread and headroom requirement.

Average staircase length. Stair run is carefully considered based on both safety and cost. Add on no matter how much carpet you calculate you need you should always buy just a bit extra to allow for any oddities or mistakes when installing it. Under staircase dimensions mistake. All staircases have one more riser than they do treads.

However the americans with disabilities act ada lists the minimum tread size as 11 inches which would be the effective minimum and likely the average size of the tread for any stairs built for public use. For an eight foot wall height figure on a 14 foot long footprint for a straight staircase. There is a formula for calculating the number of steps one should have for a particular height. You must also figure in a minimum three foot landing or clear floor area at the bottom of the steps.

Explore a number of building and housing related calculators as well as hundreds of other calculators involving topics such as finance math fitness health and more. Next calculate the run of the staircase to find the stringer length. The depth of the step is about seven to eight. Harvard university lists typical tread sizes between 8 and 11 12 inches.

The average height of a stair step in the united sates is 7 12 inches but safe and comfortable stair dimensions should be determined based on a number of factors including how long the step is how much space the staircase should take up and how tall the stairway will need to be at completion. For a curved staircase that is open on one side and contains 12 cap pie stairs without a bullnose stair you would need 12 x 10 of carpet. Buy standard staircases to order online from 15999 excluding vat we have straight staircases available ready made and we have a selection of standard sizes winder staircase designs fixed sizes from a uk iso9001 staircase manufacturer s12n2600 s12n2700 s13n2800 standard sizes low prices. Ive come across several homes where this staircase design mistake has been made.

When working out where to put a door that fits under the stairs the obvious thing to do is to take the door height and work out how many steps need to come before the door can fit underneath. Multiply the 12 treads by the minimum tread depth of 9 inches to arrive at 108 inches for the staircase run.