pf2e.fyi
From Pathfinder Adventures: Troubles in Grayce, which isn't enabled.

Balance Point

HAZARD 3
UNCOMMONMECHANICALTRAP
Stealth +10 (trained)
Description A 40-foot deep pit is obscured by a false floor set over a single balance point. Pressure on either side to the east or west causes occupants to fall into the depths below.
Disable DC 20 Thievery (trained) to attach the balanced stone floor piece to the actual floor and lock it in place, or DC 23 Crafting (trained) to jury-rig a quick bit of extra support to prevent the floor from tilting
Tipping Floor
Trigger A creature walks onto one side of the false floor
Effect The triggering creature falls into the pit and takes 20 bludgeoning damage from the fall unless they Grab an Edge. It's a DC 20 Athletics check to climb the pit walls.
Pathfinder Adventures: Troubles in GrayceORC