SuSolid for SketchUp

  1. ANALYSE your entire model with 1 click
  2. SOLIDIFY your entire model with a few clicks
  3. Check your entire model for SOLIDS INTERSECTION
  4. ASSIGN MATERIAL to your solids (iron, water, wood...)
  5. WEIGH your entire model

Help

Answers to the questions I get most often. If yours isn't here, write to me.

Jump to: Installation · Licence and updates · Downloads and delivery · Model repair

Installation

How do I install SuSolid?
From the .rbz file, with SketchUp's Install Extension button. The steps differ a little between SketchUp versions: installation steps for each version.
I installed it, but I can't see the toolbar.
Turn it on in View › Toolbars: it is called SuSolid. All commands are also in the Extensions › SuSolid menu.
Does SuSolid work in SketchUp 2026?
Yes. SuSolid 3.0 works in SketchUp 2026. Older SuSolid versions can make SketchUp 2026 crash; if you bought one, SuSolid 3.0 is free for you. More about SketchUp 2026.
Which SketchUp versions are supported?
SuSolid 3.0 works in SketchUp 2017 to 2026. SketchUp 2016 and older can't run SuSolid 3. Try the free version first to check that it runs in your SketchUp.
Does it work in SketchUp for Web, SketchUp for iPad or SketchUp Make?
SketchUp for Web and for iPad can't run extensions, so SuSolid needs desktop SketchUp on Windows or Mac. SketchUp Make runs SuSolid, but Intersection Check needs SketchUp Pro.
SketchUp won't load SuSolid, or says it isn't signed.
The copy from this site isn't signed by SketchUp. Open the extension loading policy in the Extension Manager settings and choose Unrestricted, then restart SketchUp. You can set it back afterwards if you prefer, but SuSolid then won't load.

Licence and updates

What does the full version include?
All tools (free and full compared), licensed to your name. Free updates for one year from the date of purchase.
I bought SuSolid years ago. Do I get SuSolid 3?
Yes, free. Everyone who has bought SuSolid gets SuSolid 3 free. What existing customers get.
I bought SuSolid before SuSolid 3.0. How long do my free updates last?
Your free updates are tied to the SketchUp version, as the old terms said. If you bought SuSolid on or after 7 October 2025, when SketchUp 2026 came out, you still get free updates until the next SketchUp version is released.
I bought lifetime updates. What do I get?
If you bought the lifetime updates option, you get every future update free. This option is no longer sold. What existing customers get.
Where do I see who my copy is licensed to?
At the end of the Extensions › SuSolid › Settings menu, and in About.

Downloads and delivery

I paid for the full version. Where is my download?
When PayPal confirms your payment, a personal download link is emailed to the address of your PayPal account, usually within a few minutes. The link works for 30 days and for 10 downloads. If nothing arrives, check your spam folder and the inbox of the address your PayPal account uses.
It still hasn't arrived, or I lost my copy.
Write to info@susolid.com and I'll send it again. What to include.
Can I try SuSolid before buying?
Yes: the free version has Analyse, the Analyse Report and Delete Single Edges.

Model repair

In which order should I use the tools?
Run Analyse, then fix the colours in this order: orange (Group), red (Delete Single Edges), green (Close Holes), yellow (Delete Inside or Divide). Blue and brown don't stop a group from being solid. See the worked example.
My model is solid, but the slicer or printing service still complains.
Some slicers also need all faces to point outwards. Use Flip Reversed Faces.
I have a really messed-up model that SuSolid can't fix. What can I do?

Don't give up yet. Try the tricks below one at a time, and run Analyse after each one. If the counters change, SuSolid has a better chance of fixing the rest.

Work on a copy. Save your model under a new name first (File › Save As). These steps change the model in ways that are hard to undo once you've carried on working.

  1. Enlarge a small model by a factor of 1,000.
    Useful when the model has very small details, for example a model drawn in millimetres. SketchUp merges points that are closer than about 0.001 inch (0.0254 mm), so tiny faces go missing and leave holes. Select everything, pick the Scale tool, click a corner handle, type 1000 and press Enter. Now 1 mm is 1 m. Repair the model, then scale it back down the same way, typing 0.001, before you export.
  2. Explode the group or component and group it again.
    Useful when a group holds a mix of loose geometry and nested groups, or when you can't tell which level a problem is on. Right-click it and choose Explode, then select the geometry and make it a group or component again. If the same component is used elsewhere, the other copies are not changed.
  3. Intersect the faces with each other.
    Useful when faces pass through each other without sharing an edge, which often happens after combining parts or importing. Open the group, select everything, right-click and choose Intersect Faces › With Selection. SketchUp adds the missing edges, so Analyse can show the internal faces (yellow) and Delete Inside can remove them.
How do I import an STL file so that it can be repaired?

This video shows how to import an STL file into SketchUp properly:

Watch on YouTube: Properly importing STL in SketchUp