The SketchUp Pro Classic License refers to a legacy perpetual licensing model that Trimble officially discontinued for new purchases in November 2020. While existing owners can still use these licenses, they are generally not recommended for new professional workflows in 2026 due to compatibility and support limitations. Classic License Key Overview

: Licenses for SketchUp 2017 and older are no longer supported and may not authorize correctly on newer operating systems. Current Model

: Classic licenses are version-specific. For example, a 2019 license will not work for SketchUp 2024. Unsupported Versions

: New Classic Licenses (perpetual) and Maintenance & Support renewals were permanently stopped on November 4, 2020 Perpetual Use

If you're looking for a license key for SketchUp Pro Classic, here are some general steps you can take: