Egan Room Area Tools

Egan Room Area Tools

Win64, English

Egan BIM Resources
This app facilitates room area comparisons, automates and displays occupant load calculations on room and area tags and calculates and displays major room dimensions on room tags.

General Usage Instructions

Once you install the app, it works in the background with very little need for input from the user. However, you may need to change some of the default settings, and customize the graphics to suit your company.

In Autodesk® Revit®, go to the “Add-ins” tab > and the “Egan BIM Resources” panel. Select the slide-out menu at the bottom of the panel to display the “Room Area Tools” menu. Select “Room Settings” to display the Settings Form. The main setting is “Use occupant load factor of” with a default setting of 20 (SF per person). This is appropriate for Classroom occupancies in the United States, but you should select whatever number corresponds to your company’s most common occupancy. When the Occupant Load Batch Update runs, it will set all your rooms to this factor, plus all new rooms created in the future will be assigned this factor. If your Project Units are set to meters, occupant load factor will be in square meters.

Once your default occupant load is set, select “Room Area Tools – Batch Update Values” from the menu. Pay attention to the notes about workshared files, element ownership and permissions. Click the “Room Occupant Load Factor” tab and then click the button “Add Occupant Load Factor To These Rooms.” That process will assign the default Occupant Load Factor to all rooms in your project. You can now go to the “Room Area Calculations” tab and run “Batch Update Room Area Calculations For All Rooms.” You will need to adjust the Occupant Load Factor for all rooms that need a different number, or click the “Room Skip AutoProcess” box for rooms (like assembly spaces) that have a fixed occupant load, and then you are done setting up your rooms.

Still on the Batch Update Form, select the “Load Room / Area Tag Samples” tab. On the left is a display of samples available and on the right is a list of all the Room and Area Tag Types already in your project. Use the “Load” button to load whichever samples you want into your project and see how they work. (Also see screenshot below for samples)

At this point you may to use the Revit family editor to modify the room tag families however you desire or you can copy and paste the shared parameter text boxes from the samples into your already established families.



The installer that ran when you downloaded this plug-in from Autodesk Exchange Store has already installed the plug-in. You may need to restart the Autodesk product to activate the plug-in.
To uninstall this plug-in, exit the Autodesk® product if you are currently running it, simply rerun the installer by downloading it again from Autodesk Exchange Store, and select the 'Uninstall' button, or you can uninstall it from 'Control Panel\Programs\Programs and Features' (Windows 7/8/8.1) or Add/Remove Programs (Windows XP), just as you would uninstall any other application from your system.

Additional Information

This app adds a few shared parameters into your project the first time you open your project with this app enabled. The app uses these parameters to store the room information. You may add these shared parameters to your room tag families or you may modify the sample families to suit your needs.

When you make the decision to use this app permanently, you can load the shared parameters into your template by opening and saving your template while this app is enabled. Then the app will not need to load the shared parameters into every new project.

In addition, the app adds and deletes an area on project startup to initialize area processing. You may want to add at least one area to your Project Template so the starter area will not need to be loaded into every new project.

This app is licensed by application, not by version. Your license will allow you to use any year’s version on your computer at any time, so the use of this app will not affect your Revit upgrade schedule.

Previous versions of the app are available on our website

This app is supported in the following languages:

中国的, Deutsch, English, Español, Français, Italiano, 한국의, 日本人, Nederlands, Português.

Known Issues

This app responds to events in the Revit database, and must respond to all eligible events to remain up-to-date. Therefore, to get the most value from it, each computer working on a given project must have the app installed.

To avoid Revit permission and ownership issues in a workshared project, this app regenerates room tags in the active view only. While you would only notice this issue if you have two views of the same room open side by side – for example, an overall view and an enlarged stair plan – be assured that the Revit database does contain the updated room information.

For room dimensions, circular and non-orthogonal rooms may give inconsistent results, but you can override the automated room dimensioning for any room.

On workshared projects, when opening a project for the first time, the app may have difficulty adding the necessary shared parameters due to file permissions issues, which may appear as odd error messages like "Central File Unavailable." If this happens, make sure everyone else is out of the project, open the central file, save, exit and reopen your local file. The shared parameters should now be loaded and ready to use.


Company Name: Egan BIM Resources

Author/Company Information

Egan BIM Resources

Support Information

For software support, contact us at

Version History

Version Number Version Description


Updated for Revit 2023.


Added Privacy Policy. Updated for Revit 2022.


Updated for Revit 2021


Updated for Revit 2020


Updated for Revit 2019.


Updated for Autodesk® Revit® 2018. (Win64.)
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