This job came to me from a client who was having a wedding reception at their home and were concerned about their existing staircase. The treads and risers had rotted out over the years and needed to be replaced. I suggested ipe for the job for its durability and rot-resistance.
The finished job with all treads and risers replaced with solid ipe. Hidden fasteners secure the ipe to the framing below, and where the fasteners wouldn't work I used ipe plugs to conceal stainless steel screws. After sanding them flush they disappear into the overall design.