I made these "sugar bars" for my top bar hives. As with my regular hives, the tb hives are going into the winter short of stores. I don't know if this will work,but will give it a try. There are 14 lbs in the larger one and 8 in the small one. Note how I am using it for ventilation by leaving part of it open for ventilation. See previous post for videos and pics on winterizing.
Keeper of bees.