The pole is marked for the heights from (usually) the floor platform of a building for dimensions such as window sill heights, window top heights (or headers), exterior door heights (or headers), interior door heights, wall gas jet heights (for gas lamps) and the level of the next storey joists.
The pole is marked to indicate heights from the floor platform of a building for measurements like window sill height, window top height (or header), exterior door height (or header), interior door height, wall gas jet height (for gas lamps) and the level of the next storey joists.