What is the best size crawfish pot?

a good rule of thumb is that a pot can cook half its quart-age in pounds of crawfish. for example a 60 quart pot can cook 30 lbs. most sacks are between 30-40 pounds so 60 is a little small in my opinion. 100 quarts leaves some extra room which is always a plus. PS the best price on crawfish pots is at Sam's Club.

One thing to consider...

With a smaller pot you can heat and cool the pot faster. I find 80qt to be the best size for this reason.

I use an 80 for backyard boils