The product families and how they classify
Building materials span several chapters: steel products, ceramics, stone, cement products, pipes, glass. Each family behaves differently at customs and in the container.
| Family | Classification anchor | Behavior notes |
|---|---|---|
| Steel (rebar, sections, coils, pipes) | Product form and alloy drive the line | Trade-remedy and SNI-type attention historically; verify per line |
| Ceramic tile | Size, finish and absorption drive the line | Heavy and cube-efficient; payload is the binding constraint |
| Stone & slabs | Type and finish | Out-of-gauge slabs need special handling and crating |
| Pipes & fittings | Material and joint type | Length drives container choice (see below) |
| Glass & panels | Type and treatment | Fragile-heavy mix; packing standards matter |
Steel products: scrutiny direction, stated honestly
Steel has been a recurring subject of trade-remedy instruments and technical-standard requirements in Indonesia over the years. We do not invent specific rates or article numbers here — they change, and citing stale ones is worse than citing none.
- Direction: expect the possibility of SNI-type standard requirements and trade-remedy duties on certain steel lines under the rules in force.
- What this means operationally: we verify the exact BTKI line’s current requirement set on INSW and CEISA before quoting, and we tell you if the line carries extra duties or certificates.
- Do not build a project budget on a duty rate someone quoted last year for a different product form — rebar and coated sheet can sit lines apart.
Costly mistake: Budgeting a project on one blended duty assumption across mixed steel forms. Each form (bar, section, pipe, coil) is its own line with its own current status.
Length constraints in container loading
Standard container interiors are fixed, and long materials meet those limits literally.
- A 20 ft container offers about 5.9 m of internal length; a 40 ft about 12.0 m. A 6 m rebar or pipe does not lie straight in a 20 ft — it overhangs, bends or demands a 40 ft.
- Length beyond about 12 m moves out of standard containers entirely: flat racks, breakbulk or chartered break-bulk — each with its own cost structure.
- Plan cut lengths with the container in mind: a 5.8 m cut ships in a 20 ft; a 11.9 m cut uses a 40 ft fully.
Dense cargo economics: weight is the constraint
Building materials invert the furniture problem: you run out of payload long before you run out of cube.
- Illustrative: palletized ceramic tile at roughly 2 tonnes per 1.2 CBM of cube fills a 20 ft’s weight limit at well under half of its cube. The unused cube is why dense cargo prices "per container" and stops there.
- Exact payload limits are set by the carrier and by road regulations at destination — confirm per booking, and mind Indonesian road weight limits for the trucking leg.
| Container | Usable cube (approx.) | Typical max payload (approx.) | Binding constraint for |
|---|---|---|---|
| 20 ft | 33 CBM | ~28 tonnes (carrier-dependent) | Dense cargo: tile, rebar, stone |
| 40 ft | 67 CBM | ~26 tonnes (carrier-dependent) | Bulkier but still heavy mixes |
| 40 ft HC | 76 CBM | ~26 tonnes (carrier-dependent) | Light, high-cube cargo — rarely the binding case for dense materials |
Cost and time: a payload example
Illustrative; rates subject to the prevailing quote. Recompute with your product densities.
- Note what the example shows: the tax burden is computed on value, but the freight efficiency comes from weight — the two scale differently, and that gap is where building-material margins live.
- If a trade-remedy instrument applies to your line, the BM line can exceed the assumed rate substantially — which is exactly why we verify per line before quoting.
| Line item | Basis | Illustrative value |
|---|---|---|
| Product | Palletized ceramic tile | 26,000 kg in one 20 ft |
| CIF value (illustrative) | Invoice + freight + insurance | 18,000 USD |
| BM at an assumed line rate | Assume 10% × 18,000 | 1,800 USD |
| Tax base = CIF + BM | 18,000 + 1,800 | 19,800 USD |
| PPN ~11% effective | 19,800 × 11% | 2,178 USD |
| PPh 22 at 2.5% (API + NPWP tier) | 2.5% × 19,800 | 495 USD |
Related pages
This page summarizes field practice and publicly available Indonesian import rules for general business reference only—it is not legal, customs, or pricing advice. Customs provisions, tariff rates, and licensing requirements keep changing, so the rules in force at the time and the official processing result always prevail. Wuhan Freedom International Logistics Co., Ltd. · Licensed PPJK in Indonesia · Jakarta / Semarang / Wuhan.