Depends on how big of a snake you start out with. I have kept juveniles in enclosures with the same deminsions as 10gal fish tanks. Basically, if it will work for a Red-tail Boa it will work for a Dum. Most Dumerils are not as active as Red-tail's, and cage hight is not a factor, since they are ground dwellers. I have an 8ft female that makes her home in 4ft long x 2ft deep x 15in tall Neodesha cage. I also use aspen bedding with my Dum's. I have noticed that with newspaper substrate they tend to just lay around. With the aspen they seem to be more active, trying to burrow in it.

I hope you get a Dumerils Boa, they are wonderful snakes!!

Patrick Higdon
Tuttle, Oklahoma
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1.2 dumerils boas, 1.0 pastel ball python, 1.0 albino burmese python, 0.0.1 wc prairie kingsnake, 0.2 bearded dragons, 0.0.1 sulcata tortoise