passageways Not sure if you were talking to me but if you were, I have been actually considering trying to cut the transom open right at the sides where it starts to round and either create a full width power fold down extension possibly with power fold-out swim platform with flip-up rails to accommodate extra people for family outings or if that gets to be too extensive for modifications I might just do it simple. That would just be cut, lay flat, weld-in and support with a new solid wall. The only concern is how the boat would ride having extra weight hanging behind original transom wall. A simple passage wouldn't be too hard to do. These are pretty solid structures and cutting the size of the passage out and re-creating end plates for both sides of the opening would be pretty simple. Maybe a little extra bracing from bottom corners of hull to opposite top corners could be necessary. The hardest part would be trial and test fitting the door and getting the proper angles on the edges for a snug fit without excess gaps but keeping it loose enough so that temperature fluctuations or rough waters don't jam it closed.