>Betterbee (1-800-632-3379) has very nice screened bottom boards, which
appear to be
>superior to the screen inserts offered by other vendors.

Aaron-Thank you so much for the reply!  I called Betterbee, but they only
have the inserts that go on top of the bottom board.  I am concerned about
debris build-up between the screen & the bottom board.  Is there a screened
bottom board being made?  Is it possible (give enough support to the hive)?
Linda