Loot containers
Wooden Chest
A wood reinforced block with 225 hit points.
Changes into
When its hit points run out it becomes 
Wooden Chest (Open).
Drops when destroyed
Wood× 1-3
When it collapses
Falling, it leaves 
Wood Debris (Terrain) (75% of the time) where it lands.
Loot
Holds the Wooden Chest loot container: 6 × 2 slots, 89 possible items.
Lead19%
Iron19%
Bone12%
Crushed Sand9.9%
Small Stone9.7%
Clay Soil9.7%
Chance of at least one per open at loot stage 50. Every item and stage.
Where to find (10 POIs)
Haulwell Freight (tier 3), The Goldsmith Residence (tier 2), The Lopez Residence (tier 2), Lathan's Hardware (tier 1), Skamson Grocery (tier 1), Church of Our Holy Ashes, Deepwell Shack, Flavor Corner, ParKing Lot, Rotten Cavern.
Points of interest built with this block (any of its variants), the highest tiers first, from the game's prefab files.