A safety apparatus for use on an elevated surface, for providing fall protection for multiple elevated surface configurations, so as to adaptably secure a safe work environment, the safety apparatus comprising a base member, wherein the base member includes a vertical mounting surface and a horizontal mounting surface, a stanchion, a first vertical clamping surface near the base of the stanchion, an adjustable clamp arm having a second clamping surface, wherein the clamp arm is operable to be attached to the stanchion in a horizontal slab clamp configuration, and at least one bracket operable to receive a horizontal fall protection barrier.