I'm still waiting on the foundation for the new brood boxes. But I have a hive that is very strong and couldn't wait so I got a pack of un-wired commercial foundation and cut a little off . Myself and Paul then wired it into the frames using a wax embedder that basically heats the wire to allow the wax to melt into it. As you can see the Langstroth is rectangle in shape rather than square like the Rose, National & Commercial. In order to get the box to work on top of the Rose hive I had to close off the overhang. The plan is to let the colony expand up into this box and when the queen has laid enough I will invert them around, putting a queen excluder between them and eventually clearing the bees out of the old brood box. I hope to do this with around 5 of my hives this year.So the new box goes on top of the old box, using the new roof.In a couple of weeks I will invert the hive, putting the Langstroth box on the bottom.