Since I have so many, I thought I would look through my sketches Pinterest board to look for ideas for double page layouts. Well, since I rarely do them, I have almost no sketches of double pages. So, I did a search for sketches of double page spreads and discovered that most sketches are simply a focal layout facing a layout designed to carry more photos. Armed with that info, I grabbed on of my own sketches and set out to adapt it for a double page layout.
Here is one of my sketches from my blog, created a few years ago for design team I was on. It is actually on of my favorite basic layout designs. I took this sketch, flipped it and made my focal page.
Next I made a page designed to carry a lot more pictures. This design was one that was often used on the double page sketches that I liked. I also saw several others that I plan to use in future layouts to stretch them to double page spreads.
I hope this helps you the next time you are looking to create double page layouts, but only have one page sketches.