doing wood paneling on outside 14x80 mobile home how many sheets would it take to do it

So how big are the sheets then simply some straightforward multiplication..

And allow for some waste because it won't be an exact number.

On the 14' sides, if using 4' wide sheets, It would take 4 to do 1 side, with 2' left over, you can use that 2' piece on other side. Which equals 7 sheets.
For the Long side it would take 20 sheets on each side(80 divided by 4, equals 20). Or 40 sheets total for the Long sides. Comes to 47 Sheets Total. With No Mistakes and a Plumb and Square Surfaces, You should have No waste except what is cutoff the top or bottom, Good Luck.