Spiral Staircase Calculation Formula

Spiral stair tread diagram with full dimensions.

Spiral staircase calculation formula.

The walkline is located half way along the stair width method 3. The simplest definition of your diameter is the width of your stair as spiral stairs are round stairs. Much like your well opening your diameter may be defined by your placement of the stair. When designing a spiral staircase it can be difficult to determine the length of the handrail required since it follows a helical spiral up the staircase.

The walkine is located 50 cm 20 from the inner handrail or in the centre if the stair width is less than 1m 40. Spiral stair calculator plan diagram with full dimensions. No matter where your stair is going you will need to keep stair diameter in mind. However this figure can indeed be calculated with just a few variables such as the radius of the staircase and the height to the next floor.

Running measurements explanation inside stringer tread points winding up and around inside of stairs from top of first rise to upper floor. The walkline is located 2 3 of the way along the stair width measured towards the inner handrail method 4. The walkline is located 50cm 20 from the outer handrail. Spiral staircases save valuable square meters because they occupy a much smaller area than a conventional staircase.

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. This free stair calculator determines stair parameters such as rise total run and angle stringer length based on height run tread and headroom requirement. 1 general drawing of the spiral staircase of it s measurements h the height of the staircase usually determined by the distance between the floors in your house. The stair calculator is used for calculating stair rise and run stair angle stringer length step height tread depth and the number of steps required for a given run of stairs.

With daring shapes and diverse configurations they can also be iconic objects. To calculate a spiral staircase a half spiral quarter spiral helical or even straight with a curvature you just need to think of it as straight and apply the formulas to the pitch line the pitch line is 50cm from the interior handrail or in the middle if the clearance width is less than a meter. It is worth noting that the popularity of these buildings grows literally every minute all thanks to their compactness practicality affordability and style.