I just tried to measure mine, but it's out of the trailer and behind a ton of stuff and I can't get to it. It's about 40 inches long, which makes sense since the bed is 46 inches wide, and the table doesn't stick out any further than the raised floor section. It is also connected to the 2" fiberglass lip.
Check out the web site above. They have a really helpful forum with many knowledgeable people. There are plenty of Boler owners on the site.
There are a few plans floating around on how to make the bed wider if you modify the table design. If you look hard enough, someone may have already left a plan for a table or might even send you one.