When do builders typically use a story pole?

Builders typically use a story pole when laying out wall, window, and door heights because it serves as a reference tool to ensure that these elements are level and consistent throughout the structure. A story pole is essentially a long piece of wood marked at various heights that correspond to the elevations of the walls, windows, and doors in the building.

By using a story pole, builders can easily transfer measurements from one area to another and maintain uniformity across the entire building's height. This is particularly important in carpentry to avoid discrepancies that could arise when measuring each component separately.

In contrast, the other options involve aspects of construction that don't utilize a story pole in the same way. For example, laying out roof rafters or trusses focuses more on the angles and pitch required for roofing, while building elevations refer to the overall height and appearance of the structure rather than specific placement of windows and doors. Describing elevations to a homeowner deals with communication rather than practical installation. Therefore, the primary purpose of a story pole aligns perfectly with the option concerning the layout of wall, window, and door heights.