I learned a lot building this bench, I gave a full account in my thread:
https://permies.com/t/269329/Making-Log-Bench
Starting materials:
This tree became the bench
This tree became the feet
(more starting pictures below)
Log Width (just over 11inches):
Shaping:
Using a planer on the top
Marking the saddles
Chiseling the saddles
Finished!
Overall height (17inches):
Overall length (7feet 4inches):