Load Class Information

Class A

Features:

• Light Duty Traffic
• Loads of 1-60 PSI.
• Withstand weight up to 3,372 lbs per foot (15 kn)
• Can vary in material from High Density Polyethylene to Steel
• Recommended for pedestrians, bicycles, and wheelchair traffic only

Applications:

• Sidewalks and Walkways
• Recreational Areas and Parks

Class B

• Medium Duty Traffic
• Loads of 61-175 PSI.
• Withstand weight up to 28,100 lbs per foot (125 kn)
• Can vary in material from High Density Polyethylene to Steel
• Recommended for medium-duty tire traffic, automobiles, and light trucks at speeds less than 20 m.p.h.

Applications:

• Sidewalks and Walkways
• Recreational Areas and Parks
• Garages and Parking Lots

Class C

• Heavy Duty Traffic
• Loads of 176-325 PSI.
• Withstand weight up to 56,200 lbs per foot (250 kn)
• Can vary in material from High Density Polyethylene to Iron
• Recommended for heavy-duty pneumatic tire forklifts and tractor trailers at speeds less than 20 m.p.h. & H-20 Rated

Applications:

• Warehouses
• Industrial Facilities and Distributions Centers
• Garages and Parking Lots
• Construction Sites

Class D

• EXTRA Heavy Duty Traffic
• Loads of 326-575 PSI.
• Withstand weight up to 89,920 lbs per foot (400 kn)
• Can vary in material from Steel to Iron
• Recommended for extra heavy-duty hard tire forklifts at speeds less than 20 m.p.h., H-20 Rated

Applications:

• Warehouses
• Industrial Facilities and Distributions Centers
• Garages and Parking Lots
• Construction Sites
• Airports and Airfields
• Military Installations
• Freight Terminals

Load Class E (Very Extreme Heavy Duty)

• Very Extreme Heavy Duty
• Loads of 10,000 - 15,000 PSI.
• Withstand weight up to 134,900 lbs per foot (600 kn)
• Can vary in material from Steel to Iron
• Recommended for ports, container terminals, heavy industrial facilities, and areas with extreme vehicular loads under 20 m.p.h.

Applications:

• Port facilities and Shipping Terminals
• Container yards and Intermodal Facilities
• Heavy manufacturing and Industrial Plants
• Mining operations and heavy equipment areas
• Rail yards and freight transfer stations

Load Class F (Maximum Load)

• (Maximum Load)
• Loads of 15,000+ PSI.
• Withstand weight up to 202,000+ lbs per foot (900 kn)
• Can vary in material from Steel to Iron
• Recommended for aircraft facilities, military installations, specialized port infrastructure, and areas subject to maximum vehicular loads under 20 m.p.h.

Applications:

• Airport runways, taxiways, and aprons
• Military airfields and vehicle testing facilities
• Specialized port and cargo handling areas
• Heavy industrial sites with extreme equipment loads
• Critical infrastructure projects requiring maximum load capacity