Full-Time or Part-Time Valet Driver American Valet has provided exceptional valet and shuttle services since 1980. Our small business atmosphere creates a unique culture that helps our employees and clients feel appreciated and noticed.
Know the maximum allowed riser height to determine the rise and run of stairs. For a standard straight run of stairs in a residence, the maximum stair riser height is 7 3/4 inches, and the minimum tread depth is 10 inches. The risers is the vertical part of a step, and a tread is the horizontal part that you walk on. To calculate how many risers are needed, measure the floor-to-floor height in inches, then divide the height by 7 3/4. The result will likely be a fraction, so always round up.
Divide the total rise by the typical rise per step. This will give you the total number of steps on your stairs. The typical rise per step is about 7 inches (17.8 cm), but you'll probably use a different height in your final construction. So, if your riser is 7 inches (17.8 cm) tall, your tread should be anywhere from 9 to 11 inches (23 to 28 cm) long. 2  This makes the treads long enough to comfortably fit the average foot on and high enough to make stepping easy.