Re: Where to put the opening?
I have looked at top bar bee keeping but have not taken the dive yet. There is tons of info at Phil Chandlers site http://www.biobees.com/.
From my understanding, his plans have the entrance in the middle of the side, but from what I have read others doing is placing the entrance at both ends. Close the end that you are not using up, if you happen to get a swarm before your hive is full you can house them in the other half of the top bar hive. As long as you have a follower board that can keep them separate. Just some thoughts from some one who has not done it yet but would like to one day.
"It's better to die upon your feet than to live upon your knees!" Zapata