Extension 'Divide Area Equal by ms' (currently unpublished; in tests).
Dividing an irregular 2D surface into equal parts in SketchUp (Make 2017, Pro 2026).
Description:
1. click the icon DAEms or go to Extensions - Divide Area Equal by ms;
2. select a face;
3. select an edge for the dividing orientation and hit Enter;
3. select the number of parts you want the face to be divided into. Click OK.
That's it!