Reinforcing bar (rebar) is the primary reinforcement in concrete structures — foundations, columns, beams, and floor slabs. To estimate quantities and cost, you need the rebar weight per length and the diameters that conform to the Indonesian standard SNI 2052.
Plain vs deformed rebar
- Plain bar (BjTP) — smooth surface, written with a P code (e.g. P10 = Ø10 mm plain). Typically used for stirrups and light reinforcement.
- Deformed bar (BjTS) — ribbed surface for stronger bond with concrete, written with a D code (e.g. D13 = Ø13 mm deformed). Used for primary structural reinforcement.
Rebar weight table (SNI 2052)
Nominal weight per metre and per standard 12 m length:
| Ø (mm) | Plain / Deformed | Weight (kg/m) | Weight / 12 m (kg) |
|---|---|---|---|
| 6 | P / D | 0.222 | 2.664 |
| 8 | P / D | 0.395 | 4.74 |
| 10 | P / D | 0.617 | 7.404 |
| 12 | P | 0.888 | 10.656 |
| 13 | D | 1.042 | 12.504 |
| 14 | P | 1.208 | 14.496 |
| 16 | P / D | 1.578 | 18.936 |
| 19 | P / D | 2.226 | 26.712 |
| 22 | P / D | 2.984 | 35.808 |
| 25 | P / D | 3.853 | 46.236 |
| 28 | P | 4.834 | 58.008 |
| 29 | D | 5.185 | 62.22 |
| 32 | P / D | 6.313 | 75.756 |
| 36 | P / D | 7.990 | 95.88 |
| 40 | P / D | 9.865 | 118.38 |
| 50 | P / D | 15.413 | 184.956 |
Example: a D16 deformed bar = 1.578 kg/m × 12 m = 18.9 kg per length.
The weights above follow the formula 0.006165 × d² (kg/m, d in mm), matching the nominal weight in SNI 2052.
SNI 2052 grade colour codes
Mills mark the bar ends with a colour by grade (yield strength):
- BjTP 280 — black (plain)
- BjTS 420B — red
- BjTS 520 — green
- BjTS 550 — white
- BjTS 700 — blue
Estimating your rebar quantity
For a quick estimate, multiply the total bar length for each diameter by the kg/m column, then divide by 12 m for the number of bars. Or use our steel weight calculator.
Need an SNI rebar price today?
Marselus Steel stocks SNI 2052-certified plain and deformed rebar at our Tipar Cakung warehouse, North Jakarta. Contact our team on WhatsApp for a quote and Greater Jakarta delivery.
