Blue 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 (26 POIs)
Champions Coliseum (tier 5), Correa Rockworx (tier 5), Dr. Karen Higashi Residence (tier 5), Hybrid Mining (tier 5), Pop-N-Pills Factory (tier 5), Shamway Factory (tier 5), Flushing Rule Palace (tier 4), Joe's Junction (tier 4), NDC Checkpoint Three (tier 4), NPD 3rd Division (tier 3), Pawsnout Factory (tier 3), Pop-N-Pills (tier 3), Post Office #2 (tier 3), Downtown Shamway (tier 2), Federal Appliance (tier 2), Shady Square Shoppe (tier 2), Shamway (tier 2), Working Stiff Tools (tier 2), Buy-N-Go Rest Stop (tier 1), Pop-N-Pills Mini-Mart (tier 1), A1 Self Storage, Faraway Storage, Infested Construction Site, Power Distribution Station #2, Racy's, ZBrews Row.
Points of interest built with this block (any of its variants), the highest tiers first, from the game's prefab files.