Cotterman Roof ladder with walk-thru

Cotterman Roof ladder with walk-thru is a Revit family, filed under Stair Components in BIM Content. The download is a 584 KB .rfa file. It is classified 05 51 00 Metal Stairs under CSI MasterFormat. Tagged Stair and Roof. It opens in Revit. Load it into a project and it places and schedules like the rest of the model. It sits with the Architecture content on Archade. Migrated to Archade from RevitCity, which published it in 2016. The file, its categorisation and its imagery are carried across unchanged. Released under CC0 1.0 — public domain, commercial use included, no attribution required.