This may be more a Cura question, I’m not sure.
I have Sketchup Make and the stl export/import add on.
I use Cura for the printing.
Cura will work with all Thingiverse files I use.
But when a Sketchup stl file is opened Cura thinks it is too big for the print area. I have to scale it to 80% to get it to print. At 80% it is smaller than the Sketchup design.
The Sketchup file is sized to fit within the print bed area.
I draw in inches and export the stl in mm.
The model in Cura visibly fits well within the print bed layout but it will only complete the slicing calculations if I reduce the size.
Is something tagging along from Sketchup in the stl file that makes Cura think it is larger? I do notice that the Sketchup stl file brings a rectangular border around the shape.