What tub size for what weight BP

Ok in a month I purchased my first two ball pythons and now am looking to get another two within the next 2 weeks. :banana: I am building another rack (larger) and was wondering what size tub everyone uses for what size snake? In other words below are the tubs I am looking to get all IRIS. If you all would be kind enough to copy the sizing and let me know what is the maximum weight ball you would put in there. I found one very dated thread as in I think 6 years with a large variance as to what was acceptable. If there's enough of a response I will try and average them all and update this first post. Thanks in advance!

13.63 x 8.13 x 4.38 (6 qt.)

16.14 x 10.62 x 5.90 (13.5qt)

24.21 x 16.14 x 6.29 (33 qt)

33.5 x 17.8 x 6.0 (37 qt)

13.63 x 8.13 x 4.38 (6 qt.) Hatchlings up to 200 grams

16.14 x 10.62 x 5.90 (13.5qt) 200 grams - 500 grams

24.21 x 16.14 x 6.29 (33 qt) adult males / subadult females 500 grams - 1500 grams

33.5 x 17.8 x 6.0 (37 qt) 1500 grams and up (though I would suggest the IRIS CB-70 41 qt instead of the 37 qt)

My list is pretty close to Aarons.

I like to use this as a guide.
6qt - hatchlings
16qt - anything under 500g
28/32qt - anythig below 2000g
41 qt -2000g+

I will someday convert all of my snakes to iris.

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Thanks so far everything seems similiar. The IRIS CB-70 is a 37qt. sterilite uses 41qt.