Does home depot sell gallon sized white glue?

This is Designing Woman and I work at The Home Depot. It sounds like you have a lot of projects in your future. My store only carries the 8 ounce size. I also called several local arts and crafts store and they do not carry the gallon size. I would suggest calling a professional art supply store or an education store (the ones that sell school materials for home-schoolers) to see if they can special order this for you. Best wishes on your projects.