Re: New deck, how do I start?
Here's how I pulled off the deck on my '70 Luger 14' runabout: there was already a hole in the back by the drain plug, so I found the deck thickness there. As suggested, I set my circular saw depth to just about deck thickness and sawed a strip out about 3-4" wide right down the centerline. Then I crefully cut some lines cross-wise toward but not up to the sides. Just pull the decking up from there, mine was rotted out so nothing held very much.
Be prepared for surprises and progressing on to the fun of stringer & transom replacement. I found this:
Yikes! If your floor is shot, likely the stringers too. If you pull it all out like I did, try to keep a mark or something to reset the floor level upon rebuild.