i'm sure those demensions do include the ramp part. you need an (in water) thermometer for the water temp and another one for outside the water right near the basking area (not the under-water kind). i just got the cheapy ones b/c they have worked fine...if anyone else knows a better way, please correct me if i'm wrong.
don't worry you'll get it all set-up. i never imagined how much would go into it either when i acquired my turtle...so I sympathize with your confusion!



