what is the best sized opening? 1" or 1.25"?
what is the best sized opening? 1" or 1.25"?
Seeley says 1.5 to 2 square inches. 1.5 round puts you right between there.
I reduced the 3/4" bottom board to a 2" X 3/4" opening. That is 1.5 square inches of opening.
Dan
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