I have a question about my riser height.

• I set my risers to a height of 7-1/2 to 8 inches like a straight stair, but I am short on treads. How come?
  Remember, spirals are not straight stairs; they require higher riser heights to work, typically in the range of 8-7/8 to 9-1/2 inches. Please check your paperwork or refer to the instructional video or manual that came with your stair to determine the proper riser height for your stair.
  
  
• How do I calculate my riser height?
  The paperwork included with your order will have the riser height on it, but you will want to double-check just to be safe. First, you remeasure your finished floor to finished floor height. Then take that number and divide it by the number of risers you have (treads plus your landing); the result is your riser height. For example, if you have a finished floor to finished floor height of 108 inches and have a 12-riser stair, your riser height would be 9 inches. Please refer to the installation manual and video for more information.
  
  
• Do I have to make an allowance for my riser height if I will be using wood tread coverings?
  Yes, simply drop your landing the thickness of the wood covering from the upper finished floor. Then use your normal riser height, which you figured by dividing your finished floor to finished floor height by the total number of risers (treads plus landing), for the entire installation. When you get to the bottom tread, you will find that the distance from that tread to the floor below is short the same thickness that you dropped your landing above to allow for the wood coverings. This will allow you to add the wood coverings to all the treads and landing while keeping the riser heights correct.
  

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