Forums >> Revit Building >> Technical Support >> Creating a parameter on a window

AntBM

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Joined: Tue, Aug 12, 2025
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Hi,

I'm fairly new to Revit and I wondered if anyone can help me.

I'm currently adding windows into my project and I noticed that the width is the same internally as it is externally.

At the moment you can only edit the width which controls the width for the entire window. Is there a way to create a new parameter to control the width internally. As majority of the time the internal width is small due to plasterboard etc.

Apologies if I havent explained this very well!

Many thanks

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WWHub

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Joined: Tue, May 16, 2006
13079 Posts

Sorry, your question is not clear enough.

For most window families, width is the opening width that the window goes into .  It excludes any trim.  There is no inside/outside.

The depth of the widow may or may not be controlable, depending on the window.

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