You can insert new layouts, by heading to Insert Layout or by selecting an existing layout and pressing CTRL+D to duplicate it.
If you’re creating new layouts phone number in united states or editing existing ones, we highly recommend that you use a grid structure. This will help you space and align your placeholders and help your users make sure any custom content they add looks great too. You can view any existing grid by right-clicking on a slide, selecting Grids and Guides… then Guides.
Right-click menu showing Grid and Guides option
It’s super fiddly to set up an accurate custom grid in PowerPoint. To blow our own trumpet, by far the easiest way is to use our add-in BrightSlide.
Go to the Bright Side tab, Files and Master, then Guides. Select Add to Master or Add to Layout. This means people won’t be able to accidentally move the lines around when they’re creating their content in the normal view. If you add different guides to the Slide Master and the layouts, make sure to keep the working area and margins the same to prevent too much variation from slide to slide.
Screenshot, BrightSlide guides options
BrightSlide Create Guides pop up
Don’t make the grid too complex as it will be overwhelming for the average user.
If this is all new to you, learn more about why guides are important in slide design here: Advanced PowerPoint grids and guides.