In the context of offsets, how is "run" defined?

In the context of offsets in plumbing, "run" refers specifically to the horizontal leg of the right triangle formed when analyzing the layout of piping. This term is crucial in understanding how pipes are installed, particularly when making adjustments for changes in direction and alignment.

When dealing with offsets, the right triangle concept is often employed to visualize the layout, where one leg represents the horizontal distance covered (the run), while the other leg may represent the vertical distance (rise). Recognizing this helps plumbers understand the spatial relationships between different points in a plumbing system and aids in accurately measuring and cutting pipes to fit properly in a designated space. Understanding the run is essential for calculating the necessary lengths of pipes when working with angles or adjustments in installations.