Building blocks
Wood Destroyed Filler 04
Frames are the gateway block to building. They can be used to rough out base ideas or as temporary scaffolding.
Pick them up at any time. Upgrade them with wood & a construction tool to make them permanent and much stronger.
Repair with wood & a construction tool.
Harvest drops
Wood× 2
Taken apart with a harvesting tool (axe, pickaxe, shovel), before perks and tool bonuses.
When it collapses
Falling, it leaves 
Wood Debris (Terrain) (75% of the time) where it lands.
Where to find (3 POIs)
The Bear Den (tier 3), Firemoor Manor, Racy's.
Points of interest built with this block (any of its variants), the highest tiers first, from the game's prefab files.