Bernard Randall wrote:

I am at the planning stage of replacing some deck hatches on a sailing
boat. The framework is mitered, to prevent endgrain being open to the sea,
but as these are stepped on they also need to be strong.

I see the altenatives being miters with routed slots for loose tongues, or
mitered mortice and tennons. Anyone have any experience with this type of
work?

Thanks.

BernardR

Have you considered mitered half-lap joints.

An illustration is 1/3 of the way down the page.

http://www.woodworking-online.com/chapter6/2.html
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