I have a large bathroom with a tiny bathtub. The bathroom is huge so I do not understand why the builders put in such a little tub. I love warm baths but it is so uncombable in that tiny tub. I am a small person too at 5'4 and 128 lbs. So that is not the problem. How much does it cost to renovate a bathroom. I would love to repalce this crazy tiny tub with a normal one.