Originally Posted by chewy
So you reckon just cut a big hole under the seat?
Whats the best way then of fixing the seat back down, hinge it? I vaguely remember Humber having under seat storage, doesn't they seat just wedge back in?
Make a lip higher the the edge of the top. And then make the seat to fit over the lip. Will stop rain water getting in (that's how mines made and it's done a perfect job up till now). Only thing it wont stop is if you get the boat flooded so fit a drain.
You could also make a rubber casket that will compress with the weight of the seat to form a seal.