Thicken Surface - Creating a Solid Thicken the surface model to create a solid model. Click Thicken on the Surfaces tab. In the PropertyManager, under Thicken Parameters: Select Surface-Untrim1 for Surface to Thicken . Click Thicken Side 1 . Set Thickness to 0.5. Click OK . Before After Click File > Save to This PC. Congratulations! You have completed this tutorial. Parent topicSurfaces Previous topic Untrim Surface - Patching a Surface