Why is the calculated plan dimension larger than the drawn plan? What does margin surcharge mean and how big is it?

Because plots and large copies are printed on roll paper and the plans are usually cut to the plan format, surcharges are made on the plan format for billing. For plans up to 200 cm long, this surcharge is 5 cm on all sides. For plans longer than 200 cm, the surcharge is 15 cm on the width. The surcharge thus covers the unavoidable unnecessary paper consumption (paper waste).