Doors and hatches
Brown Exterior House Double Door
Press & hold Activate to lock it or set a combination. Upgrade & repair with a construction tool using the secondary action.
Harvest drops
Wood× 2
Taken apart with a harvesting tool (axe, pickaxe, shovel), before perks and tool bonuses.
Drops when destroyed
Brass× 40
When it collapses
Falling, it leaves 
Wood Debris (Terrain) (75% of the time) where it lands.
Where to find (6 POIs)
Fortified Farm (tier 3), The Harrison Residence (tier 2), The Rua Residence (tier 2), Navezgane Church of Brick (tier 1), Mayor's Office, Sal's Safehouse.
Points of interest built with this block (any of its variants), the highest tiers first, from the game's prefab files.