Nick Schade makes beautiful handmade kayaks. One model is 18 feet long and it's built from plywood. The problem, of course, is that plywood comes in 8 foot long sheets.
Most people would work to hide the joint, to minimize it, to make it as invisible as possible. "Hey, if we have to do this, let's pretend we don't."
Nick stains the two pieces different colors and makes it into a feature. If you have a limit, perhaps it's worth embracing.