Yes, babies and juvies do best in small critter keepers or to gallon cages.

A 29 gallon will be tall enough and does not require you to manipulate it any way to achieve more vertical space.....just offer a bunch of logs/vines/bamboo/etc.
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1.0.0 Lampropeltis getula holbrooki
0.1.0 Lampropeltis getula californae
0.0.1 Lampropeltis getula nigra
1.0.0 Lampropeltis mexicana thayeri
2.3.0 Eublapharis macularius macularius
0.0.2 Rhacodactylus ciliatus
0.1.0 Gerrhosaurus major major