I always use UPS for large packages, so I checked the price - roughly $112!! That is way higher than I expected. I'm sure it is the large box that makes it cost so much, not the weight. If the piece of wood is taken to a local UPS store they could tell you what the most economical shipping method would be.
You can ship by truck line too, but that can be very inconvenient, since they cater to people shipping a lot of stuff, not one box.