What is a running dimension?

Answer 1

This are measurement that are taken from one end and provide multiple points as the increased design function

Answer 2

A running dimension is a dimension that is taken from one end of a structure and provides multiple points in an increasing fashion. This is especially helpful if a 100' tape measure is being used to mark out walls and to use when adding dimension strings will cause error. The dimension itself has one extension line, one arrow head and the numerical value of the item being dimensioned. It differs from string dimensions in that it appears to be only half of the dimension object.