We did this so much. Nothing quite as impressive as your monster map! Need to know the area of that road? Cut it out and weight it. Divide it by the paper weig

We did this so much. Nothing quite as impressive as your monster map! Need to know the area of that road? Cut it out and weight it. Divide it by the paper weight (e.g. 80gsm or more accurately weight a few pages and measure areas to get an average).