Echo chamber dimensions

Hey Guys- I'm thinking of having a house/studio built new, and would love to have a bathroom that doubles as an echo chamber (I'm single, needless to say). I'm wondering how big typical chambers are-- Thanks- Paul

I thought all bathrooms doubled as verb chambers :) It depends on how much reverb you want and how long. The simplest way is to buy a 10,000 gal concrete watertank, but as i remember it the chambers under Capitol Studios in LA would be at least 600 sq ft in size. Mind you I'd love a nice big bathroom, you could have a spa as well. :0 cheers john