Can I see the total volume of a closed 3D shape in SketchUp?
Short Answer
Yes — in SketchUp, you can see the total volume of a closed 3D shape by using Entity Info on a solid group or component. This is the most common professional method for checking sketchup volume quickly and accurately. The limitation is that volume only appears for watertight solid geometry.
What You Need to Know Before
Warning: If your model has even one tiny hole, stray edge, or internal face, SketchUp may stop recognizing it as a solid and no volume will be shown. This often happens after push/pull edits, intersect operations, or importing messy geometry from DWG files.
How to Check the Volume in SketchUp
Command: Entity Info
Shortcut: None by default
Quick Steps:
- Select the closed 3D object, and make sure it is a Group or Component from the right-click menu or after creating it.
- Open Window > Default Tray > Entity Info (or Window > Entity Info on some versions).
- In the Entity Info panel, confirm the object is listed as Solid Group or Solid Component; the Volume value will display there using the current model units.
Variables & Settings
Key Setting: Model Info > Units
Expert Setting: The displayed volume follows the model’s current unit setup. If your units are incorrect, the reported volume may be technically correct but shown in the wrong unit scale for your project.
Why it Fails
- Cause 1 (Geometry): The shape is not fully closed, or it contains internal faces, gaps, or loose edges, so SketchUp does not classify it as a solid.
- Cause 2 (layers/Locks): Part of the geometry is locked or separated across unedited groups/components, preventing the final object from being a single valid solid.
- Cause 3 (Command/Logic): You selected raw faces and edges instead of a group/component, and Entity Info will not report total volume for ungrouped geometry.
Quick Fix & Best Practice
- Quick Fix: Make the object a group, then use solid inspector or manually repair missing faces and stray edges until Entity Info reports Solid Group.
- Manager’s Verdict: Use Entity Info for fast production checks on clean conceptual or fabrication solids, but avoid relying on it before verifying model integrity, especially on imported or heavily edited geometry.
FAQ
Can SketchUp show volume for multiple objects at once?
No, not as one combined total unless they are merged into a single solid group or component.
Why does Entity Info not show volume?
Because the object is not recognized as a valid solid.
Does SketchUp Free show volume?
It depends on version and workflow, but volume reporting is most reliable when using solid groups/components in supported desktop features.
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