Why do you need bleed?
Besides errors in drawings and errors in measurements, the biggest reason to include enough bleed in a wallcovering or wallpaper mural is the plumb of the walls. A plumb line is a metal bobber on the end of a string. If you were to hold the end of the string in the top left corner of the target wall, and the bobber at the bottom of the target wall is 3″ in from the edge- your wall is 3″ out of plumb. This can happen on ANY edge of the wall, so we need to compensate for it. Bleed is necessary to cover these discrepancies.
What I am getting at here, is that sometimes square walls aren’t square, and rectangular walls aren’t rectangular. The bottom of a flat wall might be longer than the top, or the right taller than the left.
So How much Bleed is necessary?
Below is a short list of maximum wall dimensions compared to a suggested amount of bleed to be added to EACH edge of the design to be printed.
- <8′ ……….1″ each side
- <20′ …2″-3″ each side
- <50′ …5″-6″ each side
- <100′ ….12″ each side