CNP (C-channel / lip channel, “kanal C”) is used for roof purlins, wall framing, and light structures — and the first question buyers ask is usually: what does CNP cost today? Because CNP is sold by the kg / per length and prices track the market, the exact figure moves. This article explains what determines the CNP price so you can compare quotes accurately.
What determines the CNP price?
- Size & thickness. CNP is sold by the kg, so a larger profile (e.g. CNP 150 vs CNP 100) and thicker section is heavier and costs more per length. See the CNP weight table for the kg/m of each size.
- Plate thickness. For the same size, 2.3 mm costs more than 1.6 mm because it’s heavier per metre.
- Grade / standard. SNI grade affects the price; make sure it isn’t under-spec CNP.
- Mill price & market swings. Steel coil prices (the raw material for CNP) move with global prices and the exchange rate — the main reason prices change.
- Volume & delivery. Buying per bundle / per project is cheaper per kg; freight adds to the total.
Watch out: under-spec (“banci”) CNP
The market is full of CNP with thickness below nominal (e.g. labelled 1.8 mm but actually 1.5 mm). It looks cheap, but each length weighs less — so you actually pay more per kg and the purlin’s load capacity drops. Always compare the price per kg and confirm the actual thickness.
How to get the best CNP price
- Ask for a written quote with clear size, thickness, and grade.
- Compare per kg, not just per length.
- Check stock — ready stock is faster and often cheaper.
Get a CNP price today
Marselus Steel keeps CNP (C-channel) in ready stock at our Tipar Cakung warehouse, North Jakarta. For the latest price for your size and volume, request a quote on WhatsApp — our team replies fast with pricing and a Greater Jakarta delivery estimate.
