screws
To put a fine point on Leif's post, the floor -or sole - of the boat is secured to the fiberglass with screws. The screws are hidden beneath wood plugs. You can easily get the wood plugs out with a drill. Look for small round wood circles in the floor around the perimeter of the flooring (on a worn floor they are sometimes hard to spot). These are the plugs. Drill out/dig out the plugs and unscrew the screws. If you take everything up that may be sitting/resting on the sole, then simply unscrewing the floor will allow you to remove it without cutting. If you choose to cut, follow Leif's instructions. There is no buffer whatsoever between the floor and the fiberglass beneath. So, if you cut too deep, you could end up in a world of hurt.Mike