I used 1/4 inch to put over the holes in the tops of my hives in the feeders. The plan was to be able to pull the bottles without a suit on. So I used 1/4 and it did not work. They still flew out and got me. So I have redone them with 1/8 and now don't have the problem. Except I still use the suit because they come out the entrance to get me. :doh:If bees can get through 1/4" screen, then the entire bottom of the hive would be open for robber bees to invade, and it present way too big an opening for the guard bees to defend. No way!
Thanks for the links. This is a good price. Better then I get at my local hardware store.I ordered 2 rolls of 1/8 screen this evening 36 x 10' for a little over 40.00 delivered to the house. It will cover several screen bottoms.