What should be done with sections of wall that do not include baseboards?

The correct approach regarding sections of wall that do not include baseboards is to deduct them from linear feet. This is based on the understanding that when calculating materials and costs for a project, it's essential to account for only those areas that will actually incur expenses or require materials. Baseboards serve as a finishing element that contributes to the overall aesthetic and functional installations of a wall, and if they are absent, the linear footage of the wall is effectively reduced.

By deducting these sections, you are ensuring that your calculations accurately reflect the materials needed for the project, without overestimating based on wall lengths that do not require baseboards. In practical terms, this can impact the amount of materials ordered and the overall budget for the construction or renovation project, making it a vital detail not to overlook.

The other options represent less accurate approaches. Ignoring sections would lead to an incomplete assessment of the area and potentially result in a significant underestimation of costs. Calculating additional costs for areas without baseboards would not be appropriate, as those areas typically do not add extra expense regarding baseboards. Including them in ceiling area calculations is irrelevant because baseboards pertain specifically to wall treatment, and ceilings are calculated based on different parameters entirely.