I opened my haves today and two of the three have 9 top-bars of full comb. The demensions inside my haves are 18.5"X9.5", so I think that works out to about 175 square inches of comb per bar, and then two sides to each comb. My hives are 20 bars long.
My question is, when those who use slope sided hives are figuring 12 or 13 bars for brood comb, as am I, isn't there a great difference between the two in regards to surface area of brood comb?
I have read where beefolk are making slope sided TBH's 16" on the inside, 10" deep, and with a 10" wide bottom board; that works out to somthing like 100 square inches of brood comb per top-bar. Would these hives then need 20 or more combs of brood?
How much brood comb is "enough"?