Master size

When I make a new master, the size shows up as 8.5.x.11.

Hi @MariFree , Maybe the template includes bleeds? A document with this setup could Export to an 8.75 x 11.25 page dimension:

The document may have been set up as 8.5˝ × 11˝ then someone changed each page individualy using the page tool. I rarely use it, so I can’t confirm this will work. Try changing hte Document setup to  8.75˝ × 11.25˝. See if that affects any existing pages. If not, then you can go ahead and add pages. The other option is to change the size of the new parent page using the page tool.