Opening Tool - Surface Overrides

Fadda Qatarneh
Graphisoft Alumni
Graphisoft Alumni

The Opening Tool is more precise and flexible


The Opening Tool is one of the most frequently used Archicad tools in any project for the modeling, information management, and documentation of openings.


Prior to Archicad 26, openings automatically used the same surfaces as the cut elements. Archicad 26 allows more flexible and accurate modeling, display, and documentation of openings.


Users now have better control over the openings' surfaces and Graphic Override options.


Better control over surfaces of openings


Until now, openings could only use the same surfaces as the element that they cut. Archicad 26 enhances the Opening Tool to control the surfaces of openings.

The openings still use the same surfaces as the elements they cut by default, but now you can change them at any time with the new surface override options.




New surface override options


Select an opening and open its settings dialog.


  • Open the new Model panel, and use the Override Surfaces options to control the opening’s extrusion and end surfaces separately.




The opening’s extrusion surface is overridden.




The opening’s end and extrusion surfaces are both overridden.


As a result of the changes, the openings are displayed more realistically. This is especially useful in their architectural context.




New parameters in scheduling


Go to the element schedules in the Navigator and start creating a new schedule for openings. In the scheme settings, you can add four new parameters with information about the surfaces of the openings, separately from the opening’s host element:

  • Opening End Surface
  • Opening End Surface Area (Net, total)
  • Opening Extrusion Surface
  • Opening Extrusion Surface Area (Net)






As a result, you will have a new schedule for these surfaces.




Faster modeling and documentation of openings


Thanks to greater control over openings' surfaces, you’ll be able to model more quickly, document openings in your projects with fewer workarounds, and display them more realistically in their architectural context.


Workflow notes:

  • If the opening is placed in a composite with an air gap the air gap contour lines will appear to indicate the location of the air gap. It can be mostly experienced in section views and in 3D when using the vectorial engine.


  • If the opening aligns with the skin boundary in a composite structure the end surface cannot be overwritten. This is the same behavior as in previous versions when using Graphic Overrides. 
    Tip: Push the opening into the skin a little bit.





Find more detailed information about the Opening tool in the Archicad User Guide.


Learn more about the Opening Tool from these articles:




Learn about all the new design features of Archicad 26:


To learn more about all the new features of Archicad 26, read this article.

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