Class 4 Cushion Tire Forklifts Are Ideal For: 85% or more indoor usage on a smooth flat surface Capacities from 3,000 lbs. - 15,500 lbs. Multi-Shift Usage Wet or dry environments Class 5 Pneumatic Tire Gasoline, LPG or Diesel Forklifts Are Ideal For: Outdoor usage on more rugged surfaces Capacities from 3,000 lbs. - 35,000 lbs. Multi-Shift Usage Recommended Industries: Construction Companies, Recycling Plants, Building Material Distributors, Other Outdoor Demanding Environments