Custom Steel Staircase Frame

These photos were taken during construction which shows the steel structure before the treads, walls, and finishes were completed. This is a mono stringer staircase, meaning a single central spine carries all the treads rather than two side stringers. It is one of the cleaner and more demanding staircase designs we fabricate because everything is supported from one structural member and there is nothing else to hide behind if the work isn't right.

The stringer was fabricated in our shop, brought to site in one piece, and set into position during the framing stage of the build. The tread brackets are welded directly off the spine at consistent intervals and each one has to be level and at the correct angle before the finish treads are set on top. On a staircase like this the steel is the design, it will be fully visible in the finished interior and the fabrication quality will be on display permanently.

The second photo shows the staircase from a different angle which gives a sense of how the structure reads in the full height of the space. In a room with this much natural light and open volume a mono stringer staircase is the right choice. It lets the space breathe and keeps the visual weight minimal. The finished interior around this staircase is going to look sharp and the steel we put in will be a big part of why.