What is the primary function of a key sheet in architectural plans?

The primary function of a key sheet in architectural plans is to index the included sheets. A key sheet serves as a comprehensive guide that categorizes and lists all the drawings or plans contained within a set. This allows anyone reviewing the documents to quickly locate specific sheets without having to sift through the entire set. The key sheet typically provides sheet numbers, titles, and sometimes descriptions that help streamline navigation through the complex information typically presented in architectural plans. This organizational tool is crucial for ensuring clarity and efficiency in communication among project stakeholders, including architects, engineers, contractors, and clients.

In contrast, while scale details, project timelines, and references are important elements within project documentation, they do not represent the primary purpose of the key sheet. Scale details help understand measurements, project timelines outline the schedule for completion, and references provide sources of information, but these functions are distinct from the indexing role served by the key sheet.