Hi Andy
Is 2.2m the narrowest edge? I know maybe a dumb question.
If not then rotating the plan can help as most plan print machines have paper on a roll and length is not limited, but width is.
However, sometimes there is some stretch of the paper in one direction. This may affect your model.
You can check for this. If printing from file, then print a 2cm square box in the plan, and measure after.
If printing by copying, cut out a piece of graph paper and stick it onto the original before copying. Then check the print.