Upgrade path

Wood Shutters Inside→ 1× Iron Shutters →Iron Shutters Inside→ 1× Steel Shutters →Steel Shutters Inside

Hit a placed block with a stone axe, claw hammer or nail gun while carrying the material of the next step.

Also upgraded from Iron Shutters (1× Steel Shutters).

Crafting

Craft at Workbench · makes 1

Crafted as Steel Shutters: pick this one of its variants when you place it.

Harvest drops

Taken apart with a harvesting tool (axe, pickaxe, shovel), before perks and tool bonuses.

Salvage drops

Extra parts when salvaged with a wrench, ratchet or impact driver.

When it collapses

Falling, it leaves Scrap Metal Pile (75% of the time) where it lands.

Where to find (29 POIs)

Champions Coliseum (tier 5), Correa Rockworx (tier 5), Haven Hotel (tier 5), Hybrid Mining (tier 5), Shamway Factory (tier 5), Beanthere Coffee Company (tier 4), Camp Hollow Point (tier 4), Doominium Tower (tier 4), Downtown Marketplace (tier 4), Hybrid Energy (tier 4), Infested Warehouse (tier 4), Water Treatment Plant (tier 4), Abandoned Office Building (tier 3), Atlas Metal Company (tier 3), Fortified Farm (tier 3), Hybrid Energy Substation #1 (tier 3), Meat You Here Butchery (tier 3), Pawsnout Factory (tier 3), Triad Medical (tier 3), Aldos Cabinet (tier 2), Bell Lake (tier 2), Hooligan's Corner (tier 2), Hybrid Energy Substation #3 (tier 1), Friendszone Sports Center, Hybrid Energy Substation #4, Navezgane Outlets, Navezgane Public Library, Power Distribution Station #1, TV Relay Station.

Points of interest built with this block (any of its variants), the highest tiers first, from the game's prefab files.