Building blocks
Grey Bulk Goods Single Flat
A sandstone block with 50 hit points.
Harvest drops
Clay Soil× 2-4
Taken apart with a harvesting tool (axe, pickaxe, shovel), before perks and tool bonuses.
Where to find (4 POIs)
Mushroom Mining Company (tier 1), Abandoned Depot, Camp BBQ, Plating Company.
Points of interest built with this block (any of its variants), the highest tiers first, from the game's prefab files.