This two-minute videos shows how I try to nail my frames together when I’m not lazy. When I’m lazy, I just bang a nail in on the top and bottom and call it done.
I know glue is great, but I don’t use glue to keep my frames together because glued-together frames smash into a million pieces when they break apart inside an extractor. Without the glue, I can usually put them back together. The bees also tend to fill in most of the cracks with propolis, which is a pretty good glue.
This is not a practical method of assembling frames for most commercial beekeepers, but for backyard beekeepers who don’t have compressor nails guns or any expensive gear — just a hammer and some nails — this works well.
Update: It looks like I already wrote about this in excruciating detail but forgot about it: Wooden Frames That Won’t Fall Apart.