D400Road / Heavy Vehicle

D400 Channel Drains — Road & Heavy Vehicle Drainage

D400 is the load classification under EN 1433 used for road drainage and areas subject to regular heavy vehicle traffic. Forti Nova supplies the R100 D400 RapidLock and U100 D400 channel systems.

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 and adopted highways
  • •Heavy vehicle access routes
  • •Industrial access roads
  • •Urban drainage

Requires further assessment

  • —Extreme industrial loading — F900 may be required
  • —General domestic use

Channel materials

D400 channels are constructed in polymer concrete for the structural demands of road and heavy vehicle environments.

Grate types

D400 channels use ductile iron grates engineered for heavy vehicle loading.

Installation considerations

D400 installation requires an appropriate concrete surround, correctly prepared sub-base and compliance with manufacturer installation guidance. For highway applications, relevant highway authority requirements apply.

D400 Products

ULMA R100 D400 RapidLock Channel — Polymer Concrete — 100mm deep
D400Polymer concrete

ULMA R100 D400 RapidLock Channel — Polymer Concrete — 100mm deep

100mm internal width

Code: 158124 158033

£71.41

ex VAT each

£85.69 incl. VAT

Normally stocked
Details & fittings
ULMA R150 D400 RapidLock Channel — Polymer Concrete — 220mm deep
D400Polymer concrete

ULMA R150 D400 RapidLock Channel — Polymer Concrete — 220mm deep

Code: 158055 158056

£99.99

ex VAT each

£119.99 incl. VAT

Normally stocked
Details & fittings
ULMA R200 D400 RapidLock Channel — Polymer Concrete — 200mm deep
D400Polymer concrete

ULMA R200 D400 RapidLock Channel — Polymer Concrete — 200mm deep

Code: 158083 158084

£135.71

ex VAT each

£162.85 incl. VAT

Normally stocked
Details & fittings
U100 D400 Channel — Polymer Concrete
D400Polymer concrete

U100 D400 Channel — Polymer Concrete

100mm internal width

Code: 160001, 160002,670011

£65.71

ex VAT each

£78.85 incl. VAT

Normally stocked
Details & fittings
ULMA R100 D400 RapidLock Channel — Polymer Concrete — 150mm depth
D400Polymer concrete

ULMA R100 D400 RapidLock Channel — Polymer Concrete — 150mm depth

100mm internal width

Code: 158032 158033

£72.86

ex VAT each

£87.43 incl. VAT

Normally stocked
Details & fittings
ULMA R100 D400 RapidLock Channel — Polymer Concrete — 200mm depth
D400Polymer concrete

ULMA R100 D400 RapidLock Channel — Polymer Concrete — 200mm depth

100mm internal width

Code: 158041 158033

£80.00

ex VAT each

£96.00 incl. VAT

Normally stocked
Details & fittings
ULMA R100 D400 RapidLock Channel — Polymer Concrete — 250mm depth
D400Polymer concrete

ULMA R100 D400 RapidLock Channel — Polymer Concrete — 250mm depth

100mm internal width

Code: 158044 158033

£85.71

ex VAT each

£102.85 incl. VAT

Normally stocked
Details & fittings

Adjacent load classes

Frequently Asked Questions

Is D400 required for all road drainage?

D400 is the standard classification for road and heavy vehicle drainage. The appropriate class depends on the specific road type, vehicle loading and applicable authority requirements.

What is RapidLock?

RapidLock refers to the grate-securing mechanism on the R100 D400 channel. Confirm the specific mechanism and installation requirements with manufacturer documentation.

Related guides

Disclaimer: Product recommendations on this website are indicative. Final product selection must be verified against current manufacturer documentation, project-specific loading and hydraulic conditions, and applicable installation requirements. Forti Nova does not provide structural engineering design services.