Harmonized Tariff Schedule of the United States · HTS code · HS 4418.91
4418.91.10: Drilled or notched lumber studs
Not declarable on its own: use one of its 1 subdivisions Data: Harmonized Tariff Schedule of the United States · checked on 24 October 2026
- 4418 Builders' joinery and carpentry of wood, including cellular wood panels and assembled flooring panels; shingles and shakes:
- Other:
- 4418.91 Of bamboo:
- 4418.91.10 Drilled or notched lumber studs
What you pay
Importing into USA
US additional duties of HTS chapter 99 in force on 22 October 2026 are included (Section 301, 232, 338 and 201). IEEPA duties are no longer collected after the Supreme Court ruling of February 2026. Conditional exemptions (US content, end use, metal share) are not computed: check the provision.
Additional duties and import rules
Charges on top of the customs duty, and rules the goods must meet at the border.
Additional duties and charges 1
- Additional dutySection 301 — China — technology transfer, IP and innovation (2018 actions and 2024 four-year review) 25%
- Applies to goods from
- China
- In force
- from 24 September 2018
- Legal act
- HTSUS 9903.88.03
Same subheading in other tariffs
4418.91 Builders' joinery and carpentry of wood, including cellular: other, of bamboo
UK Free Third-country duty 1 tariff line 
EU Free Third-country duty 1 tariff line 
Türkiye Free Third-country duty 1 tariff line 
Canada 3% General (MFN) 1 tariff line 
Mexico 15% General (MFN) 1 tariff line 
Brazil 12.6% General (MFN) 1 tariff line 
Argentina 12.6% General (MFN) 1 tariff line 
Peru Free – 6% General (MFN) 2 tariff lines · average 3% 
New Zealand 5% General (MFN) 1 tariff line 
Japan Free – 5% General (MFN) 5 tariff lines · average 2.6% 
Taiwan Free General (MFN) 1 tariff line 
GCC 5% General (MFN) 1 tariff line 
Switzerland Free General (MFN) 1 tariff line 
Norway Free General (MFN) 1 tariff line 
North Macedonia Free – 18% General (MFN) 2 tariff lines · average 9% 
Nigeria 20% General (MFN) 1 tariff line USA lines: 4418.91
Binding rulings for similar goods
Decisions of U.S. Customs and Border Protection (CROSS) and HMRC (Advance Tariff Rulings) on goods classified here. A ruling binds only its holder, but shows how the authorities classify similar goods. The descriptions are the authorities’ own, in English.
Legal notes
Additional notes
1. For the purposes of heading 4405, ‘wood flour’ means wood powder of which not more than 8 % by weight is retained by a sieve with an aperture of 0,63 mm.
2. For the purposes of subheadings 44141010, 44182110, 44192010, 44201110 and 44209091, ‘tropical wood’ means the following tropical woods: acajou d'Afrique, alan, azobé, balsa, dark red meranti, dibétou, ilomba, imbuia, iroko, jelutong, jongkong, kapur, kempas, keruing, light red meranti, limba, mahogany (Swietenia spp.), makoré, mansonia, meranti bakau, merbau, obeche, okoumé, palissandre de Para, palissandre de Rio, palissandre de Rose, ramin, sapelli, sipo, teak, tiama, virola, white lauan, white meranti, white seraya and yellow meranti.
Code history
Since 2017; before, these goods were classified under 4418.90.
HTS code 4418.91.10 is a line of the Harmonized Tariff Schedule of the United States under HS subheading 4418.91 (builders' joinery and carpentry of wood, including cellular: other, of bamboo).
The general duty is free, and quantities are declared in m3.
For the same subheading, the UK duty is free, the EU duty is free, the Türkiye duty is free, the Canada duty is 3%, the Mexico duty is 15%, the Brazil duty is 12.6%, the Argentina duty is 12.6%, the Peru duty is 0%–6%, the New Zealand duty is 5%, the Japan duty is 0%–5%, the Taiwan duty is free, the GCC duty is 5%, the Switzerland duty is free, the Norway duty is free, the North Macedonia duty is 0%–18% and the Nigeria duty is 20%.
The United States imported goods of subheading 4418.91 worth US$33m in 2024; the largest supplier was China.
Questions and answers
What is the USA import duty for HTS code 4418.91.10?
The general duty in the Harmonized Tariff Schedule of the United States is free; the supplementary unit is m3. Preferential rates for goods from agreement countries, anti-dumping duties and VAT are not included.
Where does the United States import these goods from?
For subheading 4418.91 as a whole, the largest supplier in 2024 was China (US$14m), followed by Canada.