Step Tread Height Australia

It covers areas such as the requirements for balustrades handrails anti slip surfaces height and depth ratios of stair treads and the necessity of landings.

Step tread height australia.

The going shall be not greater than the tread depth td plus a maximum gap of 30 mm between the rear edge of one tread and the nosing of the tread above. The national construction code ncc formerly known as the building code of australia bca regulates stair construction and design in australia. The edge of treads should be visible against the background. Stair treads need to be slip resistant and extend across the full width of the stairway.

Treads must be solid if the stairway is more than 10 metres high or connects more than 3 stories. Risers goings and depth. Maximum 7 3 4 inch stair riser height. The combination of twice the riser plus the going 2r g shall be not less than 540 mm and not greater than 700 mm i e.

The average height of a stair step in the united sates is 7 1 2 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. Treads shall have a minimum live loading of 2 5 kpa or a 2 2 kn per linear metre or minimum point loading of 1 5 kn applied on 100mm 100 mm pad on each step whichever loading produces the more adverse effect. Minimum 10 inch stair tread depth with nosing or minimum 11 inches with no nosing. This free stair calculator determines stair parameters such as rise total run and angle stringer length based on height run tread and headroom requirement.

The maximum deflection shall be l 100 or 40mm whichever is the lesser over the horizontal span l of the stairway between supports. 540 2r g 700. 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.