Sorry forgot to post a method that was tried to find this form size information out.
If you export the entire business space to xml which is available from the export menu then you should be able to search through the data and find the form size specification.
There is one issue with this method. When you choose to export as xml you still end up with a bsv file. Which means all hope of pilfering through this file for the information is lost.
Support,
I will create a problem report forum post for this issue and link back to this thread.