Create Your Own Materials
SketchUp’s material libraries offer a variety of useful materials that you can add to your models. To meet your design intent, you may need to create materials using 2D image files as a starting point.
Tip: Not finding what you need in SketchUp’s default materials? Before you create a new material, try searching 3D Warehouse ! Materials for almost everything you can think of are available for download.
Windows
To create a new material from your own files or color codes open the Materials panel and follow these steps:
- On the Select tab, click Create New Material (
). The Create Material dialog will open. 
Type a name for the new material in the text field.
Use the color wheel to choose a color.
To use an image add, select Use Texture Image .
In the File Explorer window that appears locate and select an image file.
Adjust the texture size and opacity. If you have corresponding texture maps for your image texture, you can add and adjust them here.
Click OK . Your new material will appear selected in the In Model collection.