A Hip roof on a building measuring 20′ x 40′ has a 3′ overhang each way. Fascia boards comes in 10′ lengths. How many boards are needed if you assume a 6% waste

A Hip roof on a building measuring 20′ x 40′ has a 3′ overhang each way. Fascia boards comes in 10′ lengths. How many boards are needed if you assume a 6% waste