On our dock in the Stockholm archipelago, a number of logs lying against the water from land, not the actual stone piers out in the water, have crumbled after about 30 - 40 years. See the picture, it's worse now.
Since our island was hit by storm Alfrida, there are quite a lot of logs lying in the forest, spruce and pine, and I wonder if I could use those logs for this?
If so, how and should they be treated in some way? ...and how long will they last?