The wood is fairly soft and I don't expect it to last a long time. Some pieces were already a little moldy and not all of them were labeled well, but in the end you figure out what goes where. It took a whole Saturday with two adults to put together.  The directions were good.  Now, that it has been in the backyard awhile some additional pieces are getting moldy. I purchased the tallest swing I could to get the most time out of it since my child is already tall for his age. My child enjoys it and appears to be safely constructed.