Lots of them.
So then we tried 4 columns x 3 rows centered with the table. It looked okay. But was underwhelming.
So we added on. On both sides.
We ended us settling for a 6 column x 3 row grid. 18 pictures.
We went with the Ikea Ribba frames because we have some elsewhere in the house and I like the simplicity of them. That and they are only $7.99.
So with those pictures hung up, our dining room is nearing the finish line. I still have 2 chairs to sand/stain plus a picture frame to redo and then I think it will be done.