Sometimes, our projects have fixed variables, such as a room that can’t exceed a certain size. Instead of manually modifying a room and confirming that it conforms to specific dimensions, we can create parameters that ensure that our rooms always maintain their “Design Intent” ratios. Below is a link to valid formula syntax and abbreviations:

This short tutorial demonstrates some parameters that can be created with dimensions in Revit. We also show some formulas that assist in maintaining our “Design Intent” for spaces and room sizes. For more information, please contact us at

Digital Drafting Systems – Using Functions in Dimensions with Revit

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