A yieldable prop having a first end and a second end including a first
hollow conduit, a second conduit slidably received in the first hollow
conduit, a clamp assembly positioned adjacent to the first hollow conduit
and the second conduit, and at least one handle connected to the first
hollow conduit and the clamp assembly. The prop further includes a
bearing plate positioned at the first end of the yieldable prop, wherein
the bearing plate is selected from a shape comprising planar and volcano.