Graphisoft launches ARCHICAD 21 in CT, JHB, and DBN 15 Jun 201715 Jun 2017 PrintPDFSend to a friendMore sharing options More sharing options Graphisoft recently launched its newest software product, ARCHICAD 21 in Cape Town, Johannesburg, and Durban.This version of ARCHICAD 21 features Stair Tool, which makes use of Graphisoft's predictive design technology.