soft floor

[dginge]

Seacraft 18.5. 1977
I have one spot on floor right under fish box in the corner
That is soft soft. Size of a large basketball. haven't been worried about it bc my foot
Hasn't gone through it but when do you know it needs to,be done.
Do most turn a blind eye? MOST IMPORTANTLY how hard is it
To so,just,one section. I don't want to redo whole floor. Is it
Worth repairing? Could some one explain how the floor is layered
From top to,bottom? I stuck my head in a hatch last summer
When I had my fuel tank out and the bottom of the floor looked like
Good healthy, thick fibreglass. Does it go like this? Top non skid layer,
Then,wood then,fibreglass,under that?

Thanks