Thanks for clarifying. I do not know of any notebooks that are comparable in size to the 18-month journal. I did see an 8.5x11 lined notebook of 500 pages on Amazon but that may be too large for your purposes. https://www.amazon.com/Jumbo-Journal-Lined-Notebook-Extra/dp/B08TL3H28L/ref=sr\_1\_10?dchild=1&keywords=Extra+Large+Journal&qid=1622238840&sr=8-10