TDS Load Chart

Trench Drain Systems

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.

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Load Class A

3,372 lbs per foot (15 kN)

Light Traffic, Residential Use, Gardens, Patios, Landscapes, Pedestrian Areas, Bicycles, Carts, Pools

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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

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Load Class C

56,200 lbs per foot (250 kN)

Forklifts/Pneumatic Tires, Medium Sized Vehicles, Commercial Parking Lots

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Load Class D

89,920 lbs per foot (400 kN)

Commercial Airliners, Parking Lots, Warehouses, Main Roads

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Load Class E

134,800 lbs per foot (600 kN)

Industrial Areas, Construction Equipment/Vehicles, Loading Docks, Heavy Aircraft, Airports, Cargo Handling Yards

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Load Class F

202,320 lbs per foot (900 kN)

Highway Traffic, Roads, Airports, Terminals, Docks, Extreme Weight Conditions