What size film should I carry if I’m running a mobile tint business?

Answer 1: The majority of your film should be in 36” rolls. You can carry a little bit of 24” film for privacy glass, and you might also want to carry one or two rolls of 40” film for a minivan or a similar vehicle. 

Answer 2: Just carry 60” rolls, as you will get more cars out of the 60” rolls.