When the surface won't take a floor flange, this facia mount attaches the post to a vertical face instead. It bolts to the side of a concrete stair stringer, a mezzanine or balcony edge, or a deck rim joist, so the post hangs off the face and the rail runs along the edge. The welded, pre-fabricated bracket is built for the side load a face mount has to carry. It's 316-grade satin stainless steel, so the marine-grade chloride resistance holds up outdoors, near pools, and in humid air. The satin finish keeps glare down along an exposed edge. Sized for 1.5" OD tubing.