Building blocks
Bandit Ramp Sheet 2x2 A
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
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 (5 POIs)
ChemTech Distribution Center (tier 4), Don Diego Estate (tier 2), The Wagner Residence (tier 2), The Simmons Shanty (tier 1), Lone Wolf Set.
Points of interest built with this block (any of its variants), the highest tiers first, from the game's prefab files.