If you need to abbreviate it in a specific context, you could consider using:
* Bth: This is the most straightforward abbreviation, but it might not be clear in all situations.
* Booth: You could simply use the first few letters followed by a period (Booth.) if space is limited.
* Stand: If you're talking about a booth at a trade show or similar event, "stand" is a common alternative.
The best abbreviation depends on the context and the desired level of formality.