I’m upgrading an existing building and want a sleek, modern mono-stringer staircase fabricated in metal with a durable powder-coated finish. The structure must fit seamlessly into the current floor plan, respect head-height clearances, and meet local code for strength and safety. I can supply PDF/DWG files of the present layout along with exact floor-to-floor dimensions once we start. What I need from you are dimensioned shop drawings and a 3D model I can hand straight to my fabricator, plus basic structural notes that confirm tread, stringer and connection sizing for the two story staircase. AutoCAD, Revit or SolidWorks files are ideal; hand sketches alone won’t be enough. Deliverables • 3D model illustrating stringer, treads, landings and railing connections • Fully dimensioned fabrication drawings in PDF + DWG/DXF • Simple structural check or notes showing compliance with my local code I’ll review the model for fit and look, sign off, and then move to fabrication—so accuracy is crucial. Let me know your experience with mono-stringers and which software you’ll use, and we can get started right away.