GeneDavis

Looks like it is 108" clear to me. 109 1/8" rough, less 1/2" ceiling, less 5/8" floor finish. Your DB link is done this way. Going to your ONLINE dropbox, right clicking the file, should give you the "copy public link" option. Do that, and paste the public link to your post here. In a cross section view, use the tape measure or end to end dimensioning to find your shortfall. It may be due to your wallcab spec or your offset or your crown height or anything, but whatever, it is just a number.