Teak, a tropical hardwood, is a superior shower bench material for a number of reasons. It is very durable and water resistant, which are essential qualities for a piece of furniture that will be repeatedly sloshed with soap or covered in water. You have likely seen teak before in the kitchen, because it is popular for making bowls and cutting boards. The presence of silica and a high oil content ensure that even the longest of showers will not damage this essential piece of bathroom furniture.
There are several different styles of teak shower benches available for purchase. If you are building a shower from scratch, you can have one built into your wall. In that case, you can have one custom made that perfectly fits whatever shape your shower is in. You can also have a fold-up bench attached with screws, so you can put it out of the way when not in use - a perfect space saving device. Stand-alone benches can be purchased for existing showers which can not be modified.