Stair Tread Riser Diagram

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.
Stair tread riser diagram. Responding to the movement of the human body the sizes and relationships of stair risers and treads are regulated to make vertical motion safe and easy. 1 or greater tread is supported by the riser. 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. Stair tread run or horizontal depth.
Count the number of steps. Stair riser heights and stair tread depths should be within the parameters of the code to avoid any potential trip hazards for inconsistencies. Required 1 to 1 1 2 projection beyond the riser face. And a stringer width of 12 inches.
A uniform flight of stairs provides a safety factor. 1 understanding treads risers and nosings. Order the length for each piece of landing tread needed. Order your length of riser as the same length as your treads.
In doing so we shall calculate the dimensions of the steps and the staircase. Definition of detailed specifications for open riser stairs. The riser is the vertical surface of the stair. Risers are cut to length in the field.
Don t forget to add one for each flight of stairs for your total number of risers. Inconsistencies or variations in risers or treads could interfere with the rhythm of the individual using the stairs. Often a stair builder will talk about the rise and run of the stair. 8 1 4 to 9 stair tread thickness.
Laying out your risers and the stair tread is an essential part of the process. Getting the information that you need on the rise of the stairs and the overall measurements is a. 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. Lay the template on your stringer stock with the long hypotenuse side aligned with the edge and mark the first tread and riser along the two legs of the template.
Steep stairs make climbing more tiring and dangerous while shallow stairs are awkward and inefficient for our human stride. With these dimensions cut a template with the riser height and the tread depth minus one inch as 2 legs of a right triangle. This tool will prove to be invaluable to you when you re performing these tasks. Nosing is the portion of the tread that overhangs the front of the riser.
We shall take you through the example calculations for first a standard mount and then a flush mount set of stairs. Details are at stair tread dimensions. The tread on the other hand is the horizontal surface of the stair and the part of the stair you step on. The rise is the vertical dimension from tread to tread.