Hi Dawn, I found this great article that gives all kinds of useful information if you're planng to add pallets to your floor - https://www.profloortips.com/hardwood/pallet-wood-flooring-guide/
This might help: https://www.youtube.com/watch?v=ueTKXvHT0vI
Their floors turned out great!
Dawn: maybe this will help
How about this: https://www.hometalk.com/4207577/pallet-floors-redo-flooring