MetroDuct Twinwall System
MetroDuct is our premium Ducting System. Naylor MetroDuct Twinwall ducting offers the advantages of a lightweight flexible product combined with high strength and durability.
More Information
MetroDuct is designed to meet the required compression strength to current Highways specification and are supplied in various colours and markings to suit NJUG recommendations.
Manufactured in polyethylene, the pipe is normally supplied in either 6 metre lengths or 50 metre coils. The external corrugated profile gives the product added strength and the internal bore is smooth to prevent cables from snagging. If required, a sealed joint may be achieved by using two profile seals and a push fit coupling.
- Black/Red – Electricity/Power
- Orange – Street Lighting/Traffic Signal
- Purple – Motorway Communication/ Street Lighting (Scotland)
- Yellow – Gas
- Blue – Water
- Green – CCTV
- Grey – Telecommunications
BBA – All Naylor Twinwall ducting is fully compliant to the new BBA certification for sealed systems (if required) which incorporates sizes 63mm – 178mm OD in 6 metre lengths.
The lightweight, flexible duct copes with trench undulations and the high impact resistance minimises special preparation of beds and eliminates the need for special surrounds in most instances.
Benefits of MetroDuct
- The ducting has simple push fit joints for ease of installation and HDPE flexibility minimises the need for bends
- Duct is colour coded to customer requirements and can be printed to individual customer specifications
- High compression strength
- Protects cables and reduces risk of damage
- Water resistant if sealed and can be laid at extreme temperatures
- High chemical resistance
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Product Range & Variations

MetroDuct Twinwall System
MetroDuct Twinwall Ducting - Electric & Power

MetroDuct Twinwall System
MetroDuct Twinwall Ducting - Street Lighting/Traffic Signal

MetroDuct Twinwall System
MetroDuct Twinwall - Motorway Communications

MetroDuct Twinwall System
MetroDuct Twinwall Ducting - Gas

MetroDuct Twinwall System
MetroDuct Twinwall Ducting - Water

MetroDuct Twinwall System
MetroDuct Twinwall Ducting - CCTV

MetroDuct Twinwall System
MetroDuct Twinwall Utility - Telecommunications

MetroDuct Twinwall System
MetroDuct Split Pipe

MetroDuct Twinwall System
MetroDuct Coils

MetroDuct Twinwall System
Ducting Bends

MetroDuct Twinwall System
Ducting Couplings

MetroDuct Twinwall System
MetroDuct Twinwall Utility Coiled Ducting

MetroDuct Twinwall System
MetroDuct Access Chambers

MetroDuct Twinwall System
MetroDuct Cover & Frames

MetroDuct Twinwall System
MetroDuct Accessories
Want to know more about this product? Drainage Contacts
Or why not give us a call on +44 (0) 1226 790591
Downloads & Resources
Twinwall Jointing Procedure
Read more…
T5952 Certificate ENATS 12-24
PDF (45 kB)
H131ps1i3
PDF (1 MB)
Generic Customer Letter - CE Marking of MetroDuct
PDF (380 kB)
BS EN 61386-24 certificate KM 57808 - 1 Expiry 18-01-2025
PDF (773 kB)
ND-PP-021 Large Diameter Ducting Specification
PDF (665 kB)
ND-PP-008 Twinwall MetroDuct Sticks Specification
PDF (432 kB)
ND-PP-010 Twinwall MetroDuct Coils Specification
PDF (486 kB)
BS 4962 Certificate KM 58740 - 1 expires 2024-11-05
PDF (744 kB)
ND-PP-011 Perforated Gas Ducting Specification
PDF (418 kB)