Floor covering underlays
Classified under heading 5603 / subheading 5603.94 — chapter 56 of the US Harmonized Tariff Schedule.
General rate applies to goods from countries with normal trade relations. Special rates require a program code (USMCA, GSP, AGOA…). Column 2 applies where normal trade relations do not.
Duty calculator
Estimate the duty owed on an import under HTS 5603.94.10.
Excludes merchandise processing fees, Section 301 duties, antidumping/countervailing duties and freight. Estimates only — not customs advice.
Where this rate sits
Heading 5603 contains 9 tariff lines. The general rate on this line is duty-free.
| Metric | This line | Heading 5603 |
|---|---|---|
| General rate | Free | avg 0% |
| Duty-free lines | yes | 9 of 9 |
| Specific-rate lines | no | 0 |
Classification path
- 5603Nonwovens, whether or not impregnated, coated, covered or laminated
- 5603.94Weighing more than 150 g/m2
- 5603.94.10Floor covering underlays
All 9 tariff lines under heading 5603
Heading overview →| HTS code | Description | General | Col. 2 |
|---|---|---|---|
| 5603.11.00 | Weighing not more than 25 g/m2 | Free | 74% |
| 5603.12.00 | Weighing more than 25 g/m2 but not more than 70 g/m2 | Free | 74% |
| 5603.13.00 | Weighing more than 70 g/m2 but not more than 150 g/m2 | Free | 74% |
| 5603.14.90 | Other | Free | 74% |
| 5603.91.00 | Weighing not more than 25 g/m2 | Free | 74% |
| 5603.92.00 | Weighing more than 25 g/m2 but not more than 70 g/m2 | Free | 74% |
| 5603.93.00 | Weighing more than 70 g/m2 but not more than 150 g/m2 | Free | 74% |
| 5603.94.10 | Floor covering underlaysthis page | Free | 40% |
| 5603.94.90 | Other | Free | 74% |
Using HTS 5603.94.10 correctly
A ten-digit HTS number has three parts: the four-digit heading, the six-digit international subheading shared by every WTO member, and the two-digit US statistical suffix. 5603.94.10 is a US national line — the same product may carry a different suffix in the EU TARIC or in another country's tariff.
Classification is determined by the General Rules of Interpretation, not by what the product is called on the invoice. If your goods could fall in two headings, GRI 1 sends you to the heading with the most specific description; GRI 3 breaks ties by essential character. A GRI 3(b) mistake is the single most common reason an entry gets reclassified and billed for unpaid duty plus interest.