Page Layout->Page Setup ->Size Custom Size A Thank You note can be a different size to draw attention to itself. You can choose a size that matches a pre-cut invitation or card stock that is available at the local office supply store. 2. Change the Size Go to Page Layout ->Page Setup. Go to Size-> More Paper Sizes.   What Do You See? There are three tabs. You should be on the Paper tab. Please edit the following: Paper Size: Custom Size Width: 6 Height: 4   Memo to Self: By default, a new page in MS Word is 8 1/2" x 11" in the US, or the standard metric equivalent in other countries. Exam 77-881: Microsoft Word 2010 Core 3. Applying Page Layout and Reusable Content 3-1. Apply and manipulate page setup settings: Page Size