Daniel C. answered 10/27/21
Dan, Friendly, Encouraging and Efficient Sketchup Tutor
Hi,
When you have a Sketchup opened, put your model on a new page. Go to the 3D Warehouse - there should be an icon for it in the toolbar. Click on it and go to the 3D Warehouse home page. There is an option that says upload a model. It will ask you to name and describe it. Then upload.