Thanks for your question! I also wish we could easily ship them to Europe, as we’ve had many requests. Sadly, the hives weigh 90+lbs and ship in two four foot long boxes, thus making the cost incredibly expensive!
The reason for 2x2x2 entrances is that it allows the beekeeper to start their bees wherever they’d like: at either end or in the middle. I highly recommend starting at one end and allowing the bees to build in one direction. We’ve had the best success using this method and most people seem to be converting to this practice. In Biobees original plans he had people starting their bees in the center. I had dozens of beekeepers calling me up wondering why their bees died in winter, and it was largely because they’d moved both follower boards as the colony expanded. This caused honey to be stored on both sides, and the bees would die after eating through all the honey in one direction.
Our top bar hives are 42" long.