Try this:
There are two 4' panels butted against each other. Along both sides of the panels, (where they butt together) you will find a strap and a snap. The straps straddle bars that are welded to the center tube. Release the strap from the snap and lift!

TB
p.s. We vacuum and clean each boat thoroughly before it leaves the plant...anyone who has been on a tour of our facilities will note this. Unfortunately, shavings are the "Nature of the Beast", and they seem to reappear for some folks after delivery. This can come from the shimmy and roll of the boat cruising on the water, or being hauled, or rocking at a dock, etc. as shavings fall out of crevices not reached with a vacuum. TB's own demo requires extra vacuuming for shavings, too. Sorry for the inconvenience.