What written documents explain points that are not readily explained by drawings?

Specifications serve as formal documents that provide detailed descriptions of project requirements, including materials, workmanship, quality, and performance standards. Unlike drawings, which visually represent components and layouts, specifications articulate the nuances and details that may not be immediately clear in a graphical form. They outline the criteria for how systems should be constructed or maintained, offering a comprehensive guide to ensure that all aspects meet the necessary standards and requirements.

For instance, specifications might include critical information about the types of materials to be used, installation methods, and testing procedures that help in achieving compliance with regulatory standards and project goals. This additional layer of detail is essential for anyone working on a project to understand precisely what is required beyond what can be visualized in sketches or diagrams.

In contrast, base utilities maps are primarily visual representations that show the layout of utilities and may not detail specific performance criteria. Working sketches provide a rough visual idea of a project but lack comprehensive descriptions of requirements. A bill of materials lists the components needed but does not go into the specifics of how those components should be used or the standards they must meet. Therefore, specifications are the most appropriate choice for conveying detailed project information that isn't explicitly indicated in visual representations.