I'm not sure -- the problem is that the height is determined across the whole row -- as soon as you have one item bigger than others in a row it falls apart. S

I'm not sure -- the problem is that the height is determined across the whole row -- as soon as you have one item bigger than others in a row it falls apart. Some of the auto sizing features of grid make it seem like it could work but I haven't seen too many examples, and rachelandrews saying "it's not built for that" is more than enough to discourage me from trying to hack around it.