Hi Elve, they are triple decker hutches we have ordered, they are making them especially for us and just stated the dimensions are 6ftW x 3ftH x 2ftD for each tier, but if each tier is 3ft high I hope the bunnies dont have vertigo cos the top one will be 9ft in the air - LOL. They offered me the choice of having a 6 x 4 x 2 as well but we thought they would be too big. They come ready assembled for this size and we are hiring a van to go and collect them direct from their premises on Thursday. We've managed to rope in 3 extra bodies for this end in case we have to lift them over the hedge