For my Eagle Project, four benches were placed along the sidewalk of Little Mill Middle School. They encompass metal frames with 3-D printed caps on both ends, wood 2x4 and 2x6's with carriage bolts, and concrete mounts into the dirt.
I led roughly 20 scouts in building the benches, and the benches were completed within 2 work days. They were then stained at a later date before school started that semester.