John, The scrapbook that I did of my lighthouse photos are 12" high x 11 1/2" wide (I had with me at Point Fermin and Atlanta events).
I'm trying to figure out how to attach a photo to a response. As soon as I get it figured out I'll post it here or I'll just attached a scanned page to an email.
Some other sizes that I have seen fit a standard 3-hole binder.
Judy