> I found a box of Dadant wire excluders with wood frames, barely used. The > gap appears to be at or barely over 20 gauge (.161" or .162"). Some time back I decided to measure an assortment of excluders we have around here. The results are at http://www.internode.net/honeybee/Misc/excluders.htm allen http://www.internode.net/honeybee/diary/