Sourcing concrete drainage channels from China
Precast concrete drainage channels from China carry 0% UK duty across the relevant heading 6810 lines. For sale in Great Britain, check the applicable construction-product conformity route and marking before ordering. Match performance evidence to the channel and grating assembly. Cambridge China Bridge sources precast concrete drainage channels.
Zero duty on concrete channel articles
Read from the UK Trade Tariff on 10 October 2026, heading 6810 covers articles of cement, concrete or artificial stone, whether reinforced or not. All listed lines carry 0% duty for goods from China. The snapshot lists no anti-dumping or countervailing measures, suspensions or attached import controls.
For drainage channels, distinguish prefabricated structural components under 6810 91 00 00 from other concrete articles under 6810 99 00 00. The table repeats these candidate lines for different channel forms; it does not establish their classification. Send drawings, material composition and intended use to your broker to confirm the commodity code.
Separate metal gratings need their own classification check. The wider heading guide covers artificial stone and other articles. Allow for 20% import VAT and use the duty and VAT guide when comparing landed costs. For fence posts, see our precast concrete fence post sourcing guide.
| Goods | Commodity code | Duty | Anti-dumping or countervailing duty on China |
|---|---|---|---|
| Precast structural drainage channels, subject to classification | 6810 91 00 00 | 0% | None |
| Other precast concrete drainage channels, subject to classification | 6810 99 00 00 | 0% | None |
Channel geometry, loading and conformity
Specify the installation location, expected traffic, internal width and depth, section length, wall thickness, invert profile, outlet position and joint design. Agree concrete composition, reinforcement where used, frost-resistance evidence and dimensional tolerances. Order compatible gratings, frames, locks, end caps and outlet fittings against the same assembly drawing.
For Great Britain, legitimately CE-marked construction products can continue to be supplied without additional UK marking. Where third-party assessment supports CE marking, it must be undertaken by an EU recognised notified body. Establish the applicable conformity route before ordering and ask for the performance declaration, supporting reports and installation instructions for the exact assembly.
Ask the project designer to approve load performance and hydraulic suitability, including the bedding and surrounding concrete assumed by the supplier. A grating test alone does not demonstrate how the complete channel assembly performs.
Worked duty example
Illustrative example, not a quote: Illustrative shipment of 60 precast concrete drainage channel sections under 6810 99 00 00, invoiced at £15,000 free on board, with £3,000 of freight and insurance to the UK. The customs value is £18,000. Duty at 0% is £0. Import VAT at 20% is charged on the customs value plus duty, £18,000, so it is £3,600. With no duty, the only import tax is the VAT, which a VAT-registered importer can usually reclaim. The import duty and VAT guide explains each step.
Inspection checklist
Dimensions and joints: measure production sections against approved drawings and dry-assemble adjacent channels, end caps and outlets. Check invert alignment, joint gaps and grating seating during inspection.
Concrete and reinforcement: inspect for cracks, honeycombing, chipped seating edges and exposed reinforcement. Compare reinforcement position and concrete test records with the agreed specification.
Assembly and documents: check grating fit, locking engagement, outlet clearance and traceability. Match performance declarations, reports and marking details to the supplied channel and grating combination.
Packing and arrival: check support beneath sections, separators, restraint and protected edges before dispatch. On arrival, record cracked sections, damaged joint faces and missing accessories before installation.
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What goes wrong
Channels can arrive with chipped grating seats, distorted joint faces or hairline cracks caused by unsupported stacking. Mismatched gratings rock or fail to lock, while misaligned inverts interrupt the drainage run. Trial assembly and loading photographs help identify these problems before shipment.
Performance evidence may describe a different channel size, grating or installation arrangement. Agree the complete assembly and installation assumptions before production, and have the project designer review proposed substitutions.
Cambridge China Bridge sources these products for UK businesses, checking the factory and the documents before shipment. See factory verification. For repeat volumes, see container programmes.
Frequently asked questions
What is the UK import duty on concrete drainage channels from China?
The relevant heading 6810 lines carry 0% duty in the supplied tariff snapshot. No anti-dumping or countervailing measures, suspensions or import controls are listed.
Do concrete drainage channels need UKCA marking?
Additional UK marking is not needed where CE marking has been legitimately affixed. Confirm the applicable construction-product conformity route for the intended Great Britain market.
Can I buy the concrete channel and grating separately?
Yes, but approve them as a complete assembly. Check seating, locking, load evidence and installation assumptions; separately imported metal gratings also need their own classification check.
What should I inspect when drainage channels arrive?
Check cracks, chipped seating edges, joint faces, invert alignment, grating fit, locks and outlet clearance. Record damage and missing fittings before installation.