Users could now embed BIM data such as Price, Size, URL, and Status directly into components.

This was the "hero" feature of the release. Section planes could finally be named and assigned symbols, making them easier to manage in the Outliner.

A major time-saver for architects, SketchUp 2018 introduced automatic "poche" (solid fills) for section cuts, eliminating the need for complex workarounds or manual drawing.

LayOut received a significant boost with the ability to create 2D drawings at scale directly within the application, similar to traditional CAD software.

For the first time, users could import AutoCAD DWG files directly into LayOut, supporting existing title blocks and libraries. System Requirements for 2018