This may be a simple question but I can't seem to figure out an elegant/simple solution to this problem.
I am designing a large poster with one side that holds a fair bit of text so a grid/column layout will be necessary.
It will be folded across into four sections. So - I thought that setting up the columns would just be a matter of setting the gutter equal to the margins, but evidently this doesn't work because the outer 'sections' are narrower than the inner 'sections' due to the margins?
I am thinking I should evidently try to avoid having text set horizontally over folds (especially large amounts of small copy).
I'm wondering what kind of solutions people have come up with to setting text in a page that folds as it seems that even gutters across folds are impossible unless they are unusually wide (twice the margin), or the margins are unusually narrow?
(Am I making any sense at all or am I too tired?)
I've attached an image for reference...
Thanks so much in advance,
EDIT: I am starting to think the answer is simply "Draw the guides manually".