
16mm PVC Conduit for Light Circuits
16 mm is the smallest size most electricians will accept for a lighting circuit. It takes the cable a room actually needs, disappears into a ceiling void or a chase, and costs noticeably less per metre than 20 mm over a whole building.

What This Profile Gives You
The Economic Lighting Size
Enough bore for a lighting circuit without paying for capacity nobody will use.
Easy To Conceal
Sits in a shallow chase and fits ceiling voids where a larger pipe fouls the joists.
Cold Bends On Site
Turns 5 to 180 degrees over a matching spring, so ceiling runs follow the structure.
Recommended For Occupied Buildings
Part of the rigid and pliable range applied in residential blocks, offices, hospitals, schools and hotels.
Application Scenarios
- Lighting circuits in apartments and houses
- Ceiling void distribution in small commercial units
- Concealed drops to switch positions in partition walls
Who It Is For
- Housing contractors buying by the project
- Wholesalers stocking the domestic range
- Developers standardising on one conduit ladder
What Goes Wrong Without It
- Over-sized conduit inflating the material cost of a lighting package across hundreds of units
- Pipe that will not fit the chase depth the plasterer allowed
- Waiting on elbows for the many small direction changes a ceiling run needs
Technical Features
- Rigid and cold bending grades
- Six stock colours for circuit identification
- Smooth bore so the draw wire passes without snagging
- Self extinguishing and non conductive
Customisation
Colour, printing and packaging under your own brand. Wall thickness to your local standard is quoted against a sample.
Specifications
| Nominal Size | 16 mm |
|---|---|
| Grades | Rigid and cold bending |
| Regular Colours | White, grey, red, orange, blue, yellow |
| Bending Range | 5 to 180 degrees over a matching spring |
| Packing | Bundled in printed white plastic bags |
| Wall Thickness | TBC per order |
| Length | 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 We do not publish numbers we cannot stand behind.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
16 mm against 20 mm is a straight trade: 16 mm is cheaper and easier to hide, 20 mm pulls easier and leaves room for a second circuit. Buildings that will be extended or rewired tend to justify 20 mm; volume housing usually does not.
Use Guide
- Set the run out before fixing so bends fall where the structure allows them
- Bend cold over a 16 mm spring positioned under the whole arc
- Keep the draw wire moving as the conduit is fixed rather than pulling a long run at the end
- Seal open ends before plastering so screed does not enter the bore
Often Ordered Together

20mm PVC Conduit
20 mm is the size most installers reach for first.
View product →
10mm PVC Conduit
The 10 mm PVC conduit is the smallest size in the Shingfong ladder and exists for one job: keeping small gauge wire separate and tidy.
View product →
25mm PVC Conduit
25 mm is the step where a run stops serving one circuit and starts serving several.
View product →Questions About the 16mm PVC Conduit
How many wires fit in 16 mm conduit?
It depends on the conductor size and your local wiring rules. Send us the cable you intend to pull and we will confirm from the specification sheet.
Is the rigid or the cold bending grade better for ceilings?
Cold bending, because ceiling runs change direction often and each bend made from pipe removes an elbow.
Do you print the size on the pipe?
Yes, the diameter and wall thickness are printed on the pipe, and OEM printing is available.
What are the payment terms?
T/T with 30% deposit and 70% before delivery, with photos of the packed goods before the balance.
Can you match a profile we already import?
Send the sample. We measure it and tell you whether an existing mould matches or a new one is needed.
Quote the 16mm PVC Conduit
Tell us the quantity, colour and packing you need. We reply with a price, a lead time and the container plan.
