Grey Roll Up Door 3x3
A metal block with 15,000 hit points.
Crafting
Craft at Workbench · makes 1
Crafted as Roll Up Door 3x3: pick this one of its variants when you place it.
Forged Iron× 10
Spring× 10
Mechanical Parts× 10
Harvest drops
Iron× 100
Taken apart with a harvesting tool (axe, pickaxe, shovel), before perks and tool bonuses.
Drops when destroyed
- Spring× 2-6
- Mechanical Parts× 2-7
When it collapses
Falling, it leaves 
Scrap Metal Pile (75% of the time) where it lands.
Where to find (34 POIs)
Dishong Tower (tier 5), Navezgane Athletics Complex (tier 5), Navezgane County Jail (tier 5), Butcher Pete's (tier 4), Coleman's Drive-In (tier 4), Ecotrash Recycling Center (tier 4), Installation Blue Ridge (tier 4), ParKing Garage #2 (tier 4), Pete's Outlet (tier 4), Pineballs Bowling (tier 4), Atlas Metal Company (tier 3), Hexagon Hideaway (tier 3), Hogzilla Ranch LLC (tier 3), Pop's Pawn & Bel's Bakery (tier 3), The Burgcaneer (tier 3), Uncle Ray's Supermarket (tier 3), Vick Garrison's Pedipawn (tier 3), Aldos Cabinet (tier 2), Federal Appliance (tier 2), Mobile Field Hospital (tier 2), Smorgasbord Square (tier 2), Soyer Family Slaughterhouse (tier 2), The Harrison Residence (tier 2), Dick's Diner (tier 1), Bloomington Square, Diamond Liquors, Hoops Pavilion, Industrial Service Systems, Navezgane Bus Terminal, Navezgane Outlets, Plating Company, Tattered Outlet, Trader Bob, Warehouse Outpost.
Points of interest built with this block (any of its variants), the highest tiers first, from the game's prefab files.