What is the total run of the stairs in the example provided?

The total run of the stairs refers to the horizontal distance that the stairs cover from the beginning of the first step to the end of the last step. This measurement is important for determining how the staircase fits within a space and for ensuring that the stairs comply with building codes regarding safety and accessibility.

In the context of the answer provided, the total run of 12' - 6 1/2" indicates that the staircase covers a distance of 12 feet and 6.5 inches horizontally. This particular measurement is often derived from the number of steps multiplied by the run of each individual step, taking into account the proper spacing to maintain a comfortable and safe stairway.

In practical applications, understanding this value is essential for planning the overall layout of the stairs, ensuring that there is enough room to accommodate the length without taking away space from the surrounding areas. This contributes to the structural integrity and usability of the staircase in both residential and commercial environments.

Other choices might not represent the correct total run based on typical step dimensions or the specific requirements of the given scenario, emphasizing the need to calculate the run accurately using the height and number of risers.