20mm PVC Conduit for Residential and Light Commercial Wiring
20 mm is the size most installers reach for first. It balances the space wires need against how easily the run is fixed and concealed, which is why it is the default for domestic wiring and for light commercial work such as small shops and offices.
What This Profile Gives You
The Default Size
Covers lighting, sockets and small appliance circuits, so one size handles most of a domestic job.
Room To Pull
Enough bore that wires arrange themselves rather than binding, which cuts pulling time and damaged insulation.
Moisture Resistant
Quality PVC resists moisture and insulates well, for both exposed and concealed installation.
Bends Without Elbows
5 to 180 degrees over a spring, so corners around door frames are made from pipe.
Application Scenarios
- Routing wires for lighting fixtures, wall sockets and small appliances in homes
- Light duty commercial projects such as small shops and offices
- Surface runs in garages, workshops and outbuildings
Who It Is For
- Electrical wholesalers stocking their fastest moving size
- Residential and light commercial contractors
- Importers building an own-brand conduit range
What Goes Wrong Without It
- Wire binding in an undersized pipe and stripping insulation during the pull
- Running out of the one size that sells fastest because it came from a different supplier
- Elbow stock outages stopping work at every corner
Technical Features
- Rigid and cold bending grades from the same ladder
- White or off-white as standard, plus grey, red, orange, blue and yellow
- Printed size and wall thickness on the pipe
- Self extinguishing, non conductive, resistant to acids bases and salts
Customisation
OEM and ODM orders welcome: colour, printed marking, bundle count and bag printing. Custom mould design where your market uses a section we do not already run.
Specifications
| Nominal Size | 20 mm |
|---|---|
| Grades | Rigid and cold bending |
| Regular Colours | White, grey, red, orange, blue, yellow |
| Bending Range | 5 to 180 degrees over a matching spring |
| Joining | Solvent cement or threaded coupling |
| Packing | Bundled in printed white plastic bags |
| Wall Thickness | TBC per order |
Values marked TBC are confirmed per order against your drawing or sample. We do not publish numbers we cannot stand behind.
Quality Control
- First Inspection on the opening batch of every mould and colour run
- IPQC in-process checks on wall thickness, profile shape and colour while the line runs
- Final Inspection on packed goods before the container is loaded
Certification: RoHS, TUV and SGS; certificate copies are sent on request.
Comparison
Against 16 mm, 20 mm pulls easier and leaves capacity for another circuit. Against 25 mm, it is cheaper per metre and easier to conceal. For a mixed container, 20 mm and 25 mm are usually the two deepest lines.
Use Guide
- Fix clips at even centres and check the line before the cover trades arrive
- Use a 20 mm bending spring under the whole arc when forming a corner
- Cut square and deburr, then draw the wire with the run open at both ends
- Cap open ends before screed or plaster work
Often Ordered Together
25mm PVC Conduit
25 mm is the step where a run stops serving one circuit and starts serving several.
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16mm PVC Conduit
16 mm is the smallest size most electricians will accept for a lighting circuit.
View product →
32mm PVC Conduit
The 32 mm conduit carries the distribution leg: power supply, lighting and data cables sharing a route through an office building or a large house.
View product →Questions About the 20mm PVC Conduit
Why is 20 mm the most common size?
It offers a good balance between space for wires and ease of installation, which is why it covers most residential and light commercial circuits.
Can it be used outdoors?
It is used for exposed and concealed installation and resists moisture; for direct sun exposure over years, ask us for the UV resistant specification.
Rigid or cold bending?
Rigid for straight runs joined with fittings; cold bending where corners are formed on site.
How is it packed?
Bundled and wrapped in printed white plastic bags, or in cartons if you prefer.
What is the lead time?
Generally 7 to 15 days after the advance payment; loading one high cube takes 5 to 10 days.
Do you supply matching fittings?
Yes. Couplings, clips and elbows come off moulds matched to the sizes we extrude.
Quote the 20mm PVC Conduit
Tell us the quantity, colour and packing you need. We reply with a price, a lead time and the container plan.