Originally Posted by
Gamerprinter
Honestly when I place grids in some interior structure like a tavern, the grid is there to inform players of the scale inside, especially for concerns of combat. However, very often the grid indeed includes half squares or even smaller partial divisions. While I generally shoot for chambers cut in equal 5 foot squares, very often the walls aren't 5 feet wide, usually something close to 2.5 feet wide, which means even if one side of the wall lay on a grid line, the chamber adjacent is going to start with a half square. At no point will all the chambers exactly lineup to the grid, and its not my intentions that they should.
I don't build the world around a grid, a grid only facilitates use of tokens or miniatures, it doesn't define the space. I'd go as far as saying that my grids never fully match my designed spaces, nor should they.
When creating any map, laying the grid is the last thing I do, that is when I include a grid - sometimes I'm creating a map that will be used in a virtual tabletop application, where the user can place his own grid. If a grid already exists, it might not lineup with the grid tools of a given VT app. Sometimes I create 2 versions of a map, one with a grid, and one without.