Loot containers
Rotten Chest (Open)
A wood reinforced block with 225 hit points.
Drops when destroyed
Wood× 1-3
When it collapses
Falling, it leaves 
Wood Debris (Terrain) (75% of the time) where it lands.
Where to find (2 POIs)
Quiet Night Shack, Trader Joel.
Points of interest built with this block (any of its variants), the highest tiers first, from the game's prefab files.