Extra is a free productivity add-in for Autodesk® Revit® focused on automating small but repetitive measurement and calculation tasks that many architects, engineers, designers, and BIM users still perform manually. The add-in is built around a simple idea: users should not need to leave Revit or use an external calculator for basic totals such as line lengths, filled-region areas, room areas, or perimeters. Instead, Extra provides quick commands that calculate selected geometry and report the results directly, helping users save time during everyday production work.
Core Purpose
The core purpose of Extra is to remove unnecessary manual math from Revit workflows. W7k describes the tool as a response to the common situation where project teams manually add the lengths of lines or calculate areas and perimeters using a calculator. Extra addresses those small friction points by providing lightweight commands that perform the calculations automatically from selected Revit elements. While the individual tasks may be simple, automating them can improve speed, reduce transcription errors, and make day-to-day documentation and checking tasks more efficient.
Key Capabilities
- Measure length of selected lines: Adds together the lengths of selected Revit lines and reports the total length.
- Measure total area of selected regions: Calculates the combined area of selected filled regions.
- Measure outside perimeter of selected regions: Calculates the exterior boundary length of selected regions, focusing on outside loops.
- Measure total perimeter of selected regions: Adds together the full perimeter values of selected filled regions.
- Measure total area of selected rooms: Calculates the combined area of selected rooms.
- Measure total perimeter of selected rooms: Adds together the perimeter values of selected rooms.
- Copy results to the clipboard: The calculated values are automatically copied to the clipboard, making it easier to paste results into notes, schedules, spreadsheets, markups, or correspondence.
- DWG import warning: Version 1.2 adds a warning that alerts users when DWG files are being imported into a project, helping teams avoid an action that can introduce coordination, file-size, and standards issues if not managed carefully.























