JD Brewer took on a project of building a 60 ft long rack that goes in a factory that works with long metal rods. He built a 40 ft section first. That will be cut in half with bolted flange connections welded on to facilitate transport and installation.
Dual shield flux core welding using a Lincoln Electric powermig 256 and .035" 71m wire.
This video shows the stairs being built and installed with some dsfc arc shots sprinkled in.
This video shows how I layout stringers for stairs.
Part 3: https://welderskills.vhx.tv/videos/stair-layout-build-and-installation-part-3
This video shows a way I layout stair stringers. This is just a video of a crappy white board drawing and mainly how I use the calculator to determine my measurements for the stairs.
Part 2: https://welderskills.vhx.tv/videos/stair-layout-stringer-layout-part-2