First find the area of the deck. This will give you the total square feet of surface area needed to paint: A = LW A is area, L is length, and W is width
A= 42ft(28ft)
A= 1176ft²
Now divide the total square footage by 350 to get the number of gallons needed. 1176 divided by 350 is 3.36 (the number of gallons we need)
It would make sense to probably buy 4 gallons of paint
