With your model open in SketchUp, select Window > Model Info.Then all you do is type the exact dimensions you want into the ‘length’ box, which you can see to the bottom right. Click once on the starting point and once again at the end.
Scaling to a Specific Size in Sketchup Pick the tape measure tool then use it to measure the edge you want to change the dimensions of. How do I resize an object to exact dimensions in SketchUp?
