Besi CNP atau sering juga disebut: balok purlin, kanal C, C-channel, profil C biasa digunakan untuk :
- purlin (balok dudukan penutup atap),
- girts (elemen yang memegang penutup dinding seperti metal sheet) member pada truss,
- rangka komponen arsitektural.
Tabel Ukuran dan Berat Besi CNP standard:
| Product Size | Weight (Kg) | ||
| Besi CNP 60 X 30 X 10 X 1.6 | = | 9.8 | Kg |
| Besi CNP 60 X 30 X 10 X 2.3 | = | 13.5 | Kg |
| Besi CNP 75 X 35 X 15 X 1.5 | = | 12 | Kg |
| Besi CNP 75 X 45 X 15 X 1.6 | = | 14 | Kg |
| Besi CNP 75 X 45 X 15 X 2.3 | = | 19.5 | Kg |
| Besi CNP 75 X 45 X 20 X 2.3 | = | 19.5 | Kg |
| Besi CNP 100 X 50 X 20 X 1,6 | = | 24.36 | Kg |
| Besi CNP 100 X 50 X 20 X 2.3 | = | 24.36 | Kg |
| Besi CNP 100 X 50 X 20 X 3.2 | = | 33 | Kg |
| Besi CNP 125 X 50 X 20 X 2.3 | = | 27.06 | Kg |
| Besi CNP 125 X 50 X 20 X 3.2 | = | 37 | Kg |
| Besi CNP 150 X 50 X 20 X 2.3 | = | 30 | Kg |
| Besi CNP 150 X 50 X 20 X 3.2 | = | 40.6 | Kg |
| Besi CNP 150 X 65 X 20 X 2.3 | = | 33 | Kg |
| Besi CNP 150 X 65 X 20 X 3.2 | = | 45.06 | Kg |
| Besi CNP 200 X 75 X 20 X 3.2 | = | 55.62 |
Kg
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