Loot containers
Pharma Shelf Double Bottom Empty
Furniture can make your place look pretty but it usually has little defensive value.
Harvest drops
Iron× 17
Taken apart with a harvesting tool (axe, pickaxe, shovel), before perks and tool bonuses.
When it collapses
Falling, it leaves 
Scrap Metal Pile (75% of the time) where it lands.
Where to find (6 POIs)
Dishong Tower (tier 5), Downtown Marketplace (tier 4), Pete's Outlet (tier 4), Super Shamway (tier 4), Elzner's Emporium (tier 3), Vick Garrison's Pedipawn (tier 3).
Points of interest built with this block (any of its variants), the highest tiers first, from the game's prefab files.