Light Traffic, Residential Use, Gardens, Patios, Landscapes, Pedestrian Areas, Bicycles, Carts, Pools
TDS Load Chart
IMPORTANT NOTE :
Load class ratings for entire systems will always be determined by the lowest class within the system. For example, if the channel is rated as a C and the grate is rated as a D, the overall system will be rated as load class C. The same is true should the channel be rated as load class C and the grates are rated as load class A; the system as a whole would be rated as load class A.
Load Class A
3,372 lbs per foot (15 kN)
Load Class B
28,100 lbs per foot (125 kN)
Domestic Cars and Light Trucks, Small Planes, Light Traffic Parking Lots, Driveways, Sidewalks, Parks and Recreation
Load Class C
56,200 lbs per foot (250 kN)
Forklifts/Pneumatic Tires, Medium Sized Vehicles, Commercial Parking Lots
Load Class D
89,920 lbs per foot (400 kN)
Commercial Airliners, Parking Lots, Warehouses, Main Roads
Load Class E
134,800 lbs per foot (600 kN)
Industrial Areas, Construction Equipment/Vehicles, Loading Docks, Heavy Aircraft, Airports, Cargo Handling Yards
Load Class F
202,320 lbs per foot (900 kN)
Highway Traffic, Roads, Airports, Terminals, Docks, Extreme Weight Conditions