: Thanks Rod, that was my apprehension after I had marked out the hatch on the
: deck, particularly after taking away ~16mm/side for the lip; that's why I
: was keen to have experienced opinions from this forum. The advantages to
: having a larger hatch are obvious but are there any disadvantages or traps
: for the unwary in having a larger hatch eg deck strength, rigidity, lip
: sealing, etc?
: Glen G

I've used that method for building hatches, you don't want the hatch too close to the sheer, perhaps a couple inches inside. Length shouldn't matter. The flatter the hatch shape the easier it is to lay up the lip, ie: lots of curve on the sides where they near the sheer is best avoided.

Bill H.