help building a rack and enclosure sizes

[BaLLPAddICT]

I use Sterilite which is similar to Iris and use the following guideline:
15 Qt... up to 500 grams
32 Qt... up to 1,500 grams
41 Qt... over 1,500 grams

Although I'll vary it depending on the individual snake. Some of my snakes move around a lot so I move them up sooner.

thanks! what about adult boas, would they need something larger than a 41qt?