I often enjoy finding items drafted and ready to go from the 3D warehouse, but scale is frequently an issue. When working from an appliance/fixture list from the client for assurance of fit, such as a kitchen or vanity sink, it’s just enough off scale to throw me. Sometimes glaringly so ( a toilet that fills the room, LOL)
Most recently, an Axilo cabinet leveling leg is just not landing to scale according to the mfg’s CAD drawings. Looks great, but off just enough that I had to order a sample product to draft to. Indeed, the physical object matches spec, but model was off just enough to not fit the hole pattern. Tried multiple model downloads of the item from different contributors, and they seem to be almost the exact level of scale error.
Multiple guesses:
Scale can shift between versions of Sketchup? (seems unlikely)
Shift of scale from metric to imperial users? (even more unlikely, as I draft imperial yet interject metric dimensions as needed, which I love about sketchup)
Incorrectly drafted? (don’t mean to insult the contributor)
It’s just a thing you need to watch for and correct the scale on your own. Not too big an ask, given all the drafting they’re sharing, saving you time?
Maybe. Depends on what you need, how the thing is built, and what changes are required to make it suitable. If you are getting things from the 3DWH, import them into a separate file so you can check them out, fix them, or reject them and search again. Once the object meets your needs, copy it and paste it into your project file.
If the model is made from a CAD drawing or CAD model supplied by the actual manufacturer, using a wrong import unit into SketchUp can always be the problem.
Anssi is talking about the person who created the model, initially. Nothing you need to consider. WHen working with ANYTHING from 3DWarehouse, it is important to check the model on import… there is no guarantee that any model was built to the standards that you model by, so the only olition is to always check.