If you're going to build one yourself I recommend the Miller Hive-Top feeder plans right here on Bee Source. http://www.beesource.com/build-it-yo...r-type-feeder/ I put 10 of these together over the winter for less than the price of 2 of the Brushy Mtn or Mann Lake feeders. They have worked fantastic! Just the right bee space on the underside and drown-free since I started using them this season. Very nice design. Matter of fact I plan on building 15-20 more this weekend!!!