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Calculate Stair Dimensions — Step 1: Count Your Stairs & Landings

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Carpet Stair Covers · Step 1 of 4

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Measure the total rise (vertical height) from the finished concrete landing to the top surface of the raised platform where the stairs will connect. To calculate the individual step rise and run, you can either manually calculate by dividing the total rise by a target step rise (e.g., 7.5 inches) and adjusting to get an even number of steps, or use an online stair calculator (like mycarpentry.com). Input your total rise, desired step height, and tread depth, and the calculator will provide the number of steps, precise rise/run for each step, and stringer dimensions. Ensure your calculated step rise is between 6 and 8 inches for comfortable and safe stairs. This detailed calculation is crucial for accurate stringer layout.

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