Estimate the steel weight of stair stringers from the rake length and the section weight per foot.
For a steel stair, a quick weight estimate comes from the rake length times the section weight per foot times the number of stringers. Enter the channel or plate weight per foot from the supplier table.
Multiply the stringer rake length in feet by the section weight per foot, then by the number of stringers. Add treads, landings, and connections separately.
Commonly channels (C or MC shapes) or bent plate. The weight per foot comes from the steel supplier table for the chosen section.
No. It is a weight estimate only. A structural engineer must size the members and connections.