Those familiar with ARCHICAD know that each new release of the application revolves around a theme named after a breakthrough improvement. The theme of the new release of the application, ARCHICAD 21, which was launched earlier this summer, is “Step Up Your BIM.” It’s a smart way of capturing both the two main highlights of this release: one, dramatically improved means of modeling staircases and their accompanying railings; and two, the advent of truly smart design tools in ARCHICAD, which significantly ramps “up” its ability as a BIM tool.

This review explores the new rule-based Stair and Railing tools in detail, along with the many additional improvements in interoperability, Grasshopper integration, and productivity enhancements that have been made in ARCHICAD 21.