I have an oil tray under my TBH, bottom has #8 hardware cloth. I also have a couple of dvd traps laying on the wire. If the number of bees are good, and if there's only 2 shb's you will probably be fine for the present. You can decide what is best for you. Good luck. My TBH swarmed about 6 weeks ago, no queen cell, the hive got low in numbers, there was a frame fartherest from the entrance got a few lavra in it. I took several of the frames out and froze them until the bees had built their number back up. Oh, I have frames for my TBH, little over 19" at top, 11" deep, and little over 7" across the bottom. Put those frames back in today.