Channel Drain Load Classes — A15 to F900

Load classifications define the maximum test load a drainage channel system has been assessed for under EN 1433. Selecting the correct class for your application is essential — an under-rated channel may fail under load. Final suitability always requires confirmation against product documentation and project conditions.

ClassTypical ApplicationMaterials AvailableForti Nova Products
A15PedestrianPatiosPolypropylene, Polymer concreteView A15 products
B125Driveway / Light VehicleResidential drivewaysPolypropylene, Polymer concreteView B125 products
C250Commercial / KerbsideCommercial car parksPolymer concreteView C250 products
D400Road / Heavy VehicleRoadsPolymer concreteView D400 products
F900Extreme DutyAircraft standsPolymer concreteView F900 products
A15Pedestrian

Pedestrian & Landscaped Areas

A15 is a documented load classification under EN 1433, generally considered appropriate for pedestrian and landscaped areas. Final suitability depends on specific site conditions, installation detail and the manufacturer's technical requirements.

Typical applications

  • •Patios
  • •Garden paths
  • •Pedestrian walkways
  • •Landscaped areas with no vehicle access

Requires further assessment

  • —Any area where vehicles will cross or park over the channel
  • —Driveways with vehicle access

Available materials

Polypropylene, Polymer concrete

Available grate types

Polypropylene, Galvanised steel, Aluminium

View A15 products
B125Driveway / Light Vehicle

Driveway & Light Vehicle Areas

B125 is a documented load classification under EN 1433, commonly considered for suitable driveway and light-vehicle applications. Final suitability depends on traffic position, installation detail and the manufacturer's technical requirements.

Typical applications

  • •Residential driveways
  • •Domestic car parks
  • •Light vehicle areas

Requires further assessment

  • —Commercial vehicle routes
  • —HGV access roads
  • —Areas with frequent heavy vehicle crossing

Available materials

Polypropylene, Polymer concrete

Available grate types

Ductile iron — slotted, Ductile iron — heelguard, Polypropylene — heelguard

View B125 products
C250Commercial / Kerbside

Commercial & Kerbside

C250 is a documented load classification under EN 1433, generally associated with commercial car parks and kerbside areas. Final suitability depends on project-specific loading conditions, installation specification and the manufacturer's technical requirements.

Typical applications

  • •Commercial car parks
  • •Kerbside drainage
  • •Appropriate medium commercial areas

Requires further assessment

  • —Major road applications
  • —Continuous HGV traffic areas
  • —Industrial vehicle routes

Available materials

Polymer concrete

Available grate types

Ductile iron — wide slotted, Galvanised steel — top slot

View C250 products
D400Road / Heavy Vehicle

Road & Heavy Vehicle

D400 is a documented load classification under EN 1433, commonly used for road drainage and heavy-vehicle areas. Final suitability requires confirmation against project-specific loading, installation and manufacturer documentation.

Typical applications

  • •Roads
  • •Heavy vehicle access routes
  • •Industrial access roads
  • •Urban drainage

Requires further assessment

  • —Extreme industrial loading without verification
  • —Aircraft or port areas

Available materials

Polymer concrete

Available grate types

Ductile iron

View D400 products
F900Extreme Duty

Extreme Duty

F900 is the highest documented load classification under EN 1433, associated with extreme-duty environments including aircraft stands, ports and heavy industrial sites. Project-specific assessment is required before specifying F900 products.

Typical applications

  • •Aircraft stands
  • •Dock areas
  • •Port environments
  • •Extreme industrial loading sites

Requires further assessment

  • —General commercial or road use — lower-rated channels are normally appropriate

Available materials

Polymer concrete

Available grate types

Ductile iron

View F900 products
Important: Load classifications referenced on this website are drawn from EN 1433. All performance claims should be verified against current manufacturer documentation before use in a specification. Forti Nova does not provide structural engineering design services.