The single-chamber designs are roughly: 31" tall x 17" wide x 3" deep
The dual-chamber designs are roughtly: 36" tall x 19" wide x 4 3/4" deep
The Mammoths are: 30 3/4" tall x 37 3/4" wide x 4 3/4" deep
Our single-chamber designs are the smallest sizes recommended by experts.