What size do people normally keep in a 12 quart and 27 quart sterilite?

1954 - 12 Quart Storage Box 16 3/8"L x 11 1/2"W x 5 7/8"H

1956 - 27 Quart Storage Box 23"L x 16 3/4"W x 5 7/8"H


I was thinking ~ 30 inch snake max in the first and ~ 40 inch snake max in the second?


For a ball python if the room was kept dark would a 27 quart be ok for a 4' , or would that be a bit cramped?