OK, it was a stupid thing to do. Having said that, first floor restoration project (obviously) on a 15 ft Titan Thundercraft, floor rotted throughout. Read some posts here on the subject, set my Skil Saw at the most shallow setting, started in the center and away I went. As I got closer to the port side, the saw "slipped" and suddenly I see the floor of my shop through about a 4" cut. I have absolutely no prior experience and intend to make this a winter project. What material is used to repair the hull? Do you patch inside and outside? Pardon my ignorance, learning (the hard way) as I go. Thanks for any help.