Having mason layout on all pages

I am trying to get the mason layout on all the pages on my blog https://www.titletobedetermined.com, but I can’t figure it out. I tried using the code from the homepage, but only want specific posts on specific pages, not every single post on a page. I see that if I pick a category it will do that and show up in the masonry style, but I would like to do that for my pages.