Stair Tread Angle Calculator

A study conducted by the national library of medicine nlm found that the optimum riser was 7 2 in 183 mm and the optimum tread run was 11 or 12 in 279 or 300 mm.

Stair tread angle calculator.

Enter total stair rise inches. Then calculate the inverse tangent of the result. Angle of your staircase. This free stair calculator determines stair parameters such as rise total run and angle stringer length based on height run tread and headroom requirement.

Enter total stair run. Not only is it used frequently but it also applies to other types of projects and calculations. Divide the total rise by the total run of the staircase. For convenience and flexibility this stair stringer calculator comes in two forms the automatic and manual click on the icons to determine the best calculator to use for your stairs.

Use if total run is restricted by obstacles such as doors or landings. Either b or c is required. Try it right now for free. As with most aspects of construction it involves taking direct measurements and manipulating those measurements with math to obtain a goal.

We suggest 10 5 for 2x12 or 2 2x6 treads. In addition we will show you how the stair stringer calculator works out the rise run angle and stringer length allowing you to plan the layout of your intended staircase effectively. Use our simple stair calculator to determine pitch angle risers going number of steps and other dimensions. 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.

How do i use this calculator. 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. Being able to calculate stair angles is an important tool in construction. Running measurements vertically lower floor to top of each tread possible landing heights blue middle to calculate and display upper floor opening and stair head room enter upper floor thickness check the show head room check box and drag the head slider to calculate and animate diagram head room and floor opening.

Two boards 5 4x6 two boards 2x6 one board 2x12 deck joist. How to use the ez stair calculator. Treads may be cut to suit other widths. Is there a head height restriction.

Set your calculator to calculate trigonometric functions in degrees. The answer is the angle the staircase makes at the bottom and it will be the angle at which your railing rises.