A two-story building has identical bathroom stacks on floors 1 and 2. The floor-to-floor height is 10 feet. Estimating vertical pipe for one stack from the first-floor drain to the second-floor branch, roughly how much vertical footage should you count?

Giải thích

The vertical run between floors equals the floor-to-floor height, about 10 feet, adjusted for fitting takeout and stub heights. Reading the section or riser diagram gives the vertical dimension the plan view cannot. Counting vertical footage per floor and multiplying by the number of floors builds an accurate stack estimate.