tModLoader How do tile textures work?

[AxerTheAxe]

Hi! I Have been making a tile (bigger than just a single block) and I don't know how to texture it. I know there is a grid you have to use and I have put a grid over my image but it doesn't work. Id there some code I have to put in that changes the dimensions? (Like item.width/height)

Thanks for any help!