Made in the USA Since 1895.
The leading tread design for exterior spiral stairs in educational settings, the Duvinage 251 makes for an excellent choice at this middle school. Shown here in 5’–6” diameter with 33 risers, featuring custom helixed steel rail, solid rod balusters, 6” center pole, bar grating treads and two platforms. Finished in hot-dip galvanizing. Location: New York, New York.