Why Choose Griddle?


  • Generate meshes for both continuum and discrete element models
  • Integrated within Rhinoceros 3D, a powerful CAD program for creating and modifying surfaces, solids, and meshes
  • Produce different types of volume meshes to fit your goals:
    • Structured hexahedral meshes for accurate stress calculations
    • Unstructured tetrahedral meshes when working with the most complex geometries and generating 3DEC bonded-block-models (BBM)
    • Unstructured Hex-dominant meshes as a hybrid approach to maximize the volume fraction of hexahedral elements
  • Preserve surface mesh overall shapes and properties through the process of mesh intersection and remeshing
  • Built-in Rhino 3D mesh repair tools and new Griddle automated mesh repair functionality
  • Named Rhino 3D objects are included in the FLAC3D or 3DEC grid files as groups, making it easy to reference joints, faults, and other geotechnical domains in Itasca’s software
  • Control local mesh resolution for surface meshes by specifying local mesh size, hard edges or hard nodes
  • Control the gradation of element sizes (e.g., from small to big) in surface and volume meshes
  • Extract, extend and/or extrude surface meshes using Griddle tools to quickly and efficiently prepare surface meshes for remeshing and volume meshing with desired parameters
  • Customize, parameterize, and fully automate Rhino and Griddle using powerful macros, Visual Basic, and Python scripting
  • Export meshes to non-Itasca, Finite Element software formats


  • Now able to export FLAC3D 7 and 3DEC 7 as binary grid files for smaller sizes and faster loading.
  • Create 3DEC 7 meshes either using Rigid or Deformable block format.
  • Faster and more robust surface and volume meshing engines.
  • Preserve initial surface/polysurface/mesh information and automatically transfer names of Rhino objects as groups in FLAC3D and 3DEC.
  • Efficiently prepare surface meshes and fix issues using GHeal, GExtract, GExtend, and/or GExtrude.


  • Easily create high-quality meshes in various formats.
  • Automatically check for possible meshing issues before volume meshing.
  • Volume mesher GVol highlights problematic areas that may require additional clean-up or fixing.
  • Griddle generates element reports defining the types and fractions of elements.
  • Griddle now has automated mesh repair tools with powerful features exceeding Rhino capabilities.
  • Griddle’s surface mesh intersector (GInt) ensures conformal meshes across the geometry.


  • Since being commercially released in 2015, Griddle has been used by Itasca engineers and scientists in their work often when dealing with the most complex geometries and structures.
  • Used worldwide by a wide variety of industries, universities, and government agencies.


  • Multiple types of surface remeshing and volume meshing elements (tetrahedral, hexahedral, and hex-dominant).
  • Rhino 3D has a large number of point, line/curve, surface, solid, and mesh drafting tools that are easy to use.
  • Customize, parameterize, and automate Rhino and Griddle using powerful macros, Visual Basic, and Python scripting.
  • Rhino 3D imports/exports a large variety of CAD file formats.
  • Optional FLAC3D 7 and 3DEC 7 ASCII format for grid files, making it easier to modify or customize grid files.
  • Standard license is portable between computers and users.
  • Multiple seat network licenses available.
  • Monthly and annual leases available.


  • No annual maintenance fees.
  • Standard license is portable between computers and users.
  • Monthly and annual leases are available.

Latest News
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Upcoming Events
23 May
71st Highway Geology Symposium
Better highways through applied geology.... Read More
20 Jun
URTeC 2022
The Unconventional Resources Technology Conference (URTeC) is an event focused on the latest science and technology applied to explorat... Read More
20 Jun
IAEA International Conference on the Safety and Security of Radioactive Sources
The IAEA is organizing the International Conference on the Safety and Security of Radioactive Sources - Accomplishments and Future Ende... Read More