Bandit Wall, Corrugated, 2x3
While not as sturdy as solid concrete, iron constructions have high structural integrity, requiring fewer support pillars.
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 (27 POIs)
Champions Coliseum (tier 5), Beanthere Coffee Company (tier 4), ParKing Garage #2 (tier 4), Bill Gearz Place (tier 3), Fortified Farm (tier 3), Ranger Station Alpha (tier 3), Bart's Salvage (tier 2), Don Diego Estate (tier 2), Mo Power Components Factory (tier 2), Our Best Moments (tier 2), The Animal Hoarder (tier 2), The Wagner Residence (tier 2), Camp Carwhal (tier 1), Caravan Carousel (tier 1), Hog Foot Village (tier 1), Mercy Point Camp (tier 1), Destroyed Pharmacy, Fallen Survivor Compound, Fortified Fizz Cola Warehouse, Navezgane Outlets, ParKing Lot, The Shed, Trader Bob, Trader Jen, Trader Joel, Trader Rekt, Warehouse Outpost.
Points of interest built with this block (any of its variants), the highest tiers first, from the game's prefab files.