Sometimes referred to as barrel key, a tubular key is designed to unlock a tubular pin tumbler lock. Its shaft is generally described as cylindrical and hollow. In addition to these basic facts, it is also interesting to find out the different dimensions of a tubular key.
It is quite unfortunate that home makers only think of bathtubs as later additions when designing their homes. In fact, considering bathtub dimensions, you should put a little more effort to design the tub to meet your specific needs and taste. There are also practical and spatial considerations to make when choosing the right bathtub size.