Which tool is primarily used for dimensioning in Revit?

The ‘Dimension’ tool is specifically designed for creating dimensions in Revit. This tool allows users to accurately measure and annotate the distances between elements within a model. When using the Dimension tool, you can easily place linear dimensions, aligned dimensions, and angular dimensions, which are essential for conveying the precise measurements necessary in architectural drawings and documentation.

Although the Annotate tab provides access to various annotation tools, including the Dimension tool itself, it is not the primary tool for dimensioning; rather, it serves as a broader interface for different annotation functions. The Measure tool is intended for quick measurements while working in the model but does not create permanent annotations or dimensions in the document. The term 'Annotation' generally refers to a variety of tools for adding notes and labels, including dimensions but not exclusively focused on them.

In summary, the Dimension tool stands out as the primary tool for dimensioning because it specifically focuses on measurement representation, making it essential for any documentation or detailing work within Revit.