Elm wood withstands wet conditions very well. This meant it was a popular choice for the building of boat and barge hulls, bridge foundations, and cartwheels. Hollowed-out elm was used to make urban water pipes before the introduction of metal ones.
Its pliancy was also put to use in a variety of ways. In Scotland the stick used to play shinty, called a caman, was often made from elm as it often has a natural bend already in the wood.
Elm wood is traditionally used to make coffins.
You can get some from Cheviot Trees.