Historical stair repairs take advantage of solid steel stringers hid behind timber trim
https://www.scribd.com/document/1038567289/Exactly-How-Custom-made-Smokeshaft-Shrouds-Enhance-Historic-Home-Performance-and-Style-151957
Historical stairway restorations gain from strong steel stringers concealed behind timber trim, paired with hand-forged rail parts that match antique profiles.