HTS heading 4418 · Chapter 44
HTS 4418: Builders' joinery and carpentry of wood, including…
HTS heading 4418 covers builders' joinery and carpentry of wood, including cellular wood panels and assembled flooring panels; shingles and shakes. It has 31 tariff lines with a duty rate; the general (MFN) rates are 3.2% (15 lines), Free (8 lines), 4.8% (4 lines) and others.
Imports may also owe Chapter 99 tariffs (Section 232, 301 or 201) depending on origin and date, plus the Merchandise Processing Fee and, by sea, the Harbor Maintenance Fee.
Rates from the 2026 HTS Revision 22, effective October 30, 2026. Source: U.S. International Trade Commission.
Tariff lines and duty rates
| HTS code | Description | General | Special | Column 2 | Estimate |
|---|---|---|---|---|---|
| Windows, French-windows and their frames: | |||||
| 4418.11.00.00 | Of tropical wood[No.] | 3.2% | Free (A,AU,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG) | 33 1/3% | Estimate → |
| 4418.19.00.00 | Other[No.] | 3.2% | Free (A,AU,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG) | 33 1/3% | Estimate → |
| Doors and their frames and thresholds: | |||||
| 4418.21 | Of tropical wood: | ||||
| 4418.21.40.00 | French doors[No.] | 4.8% | Free (A,AU,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG) | 33 1/3% | Estimate → |
| 4418.21.80 | Other | 4.8% | Free (A,AU,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG) | 33 1/3% | |
| 4418.21.80.30 | Flush doors[No.] | Estimate → | |||
| 4418.21.80.60 | Other[No.] | Estimate → | |||
| 4418.29 | Other: | ||||
| 4418.29.40.00 | French doors[No.] | 4.8% | Free (A,AU,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG) | 33 1/3% | Estimate → |
| 4418.29.80 | Other | 4.8% | Free (A,AU,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG) | 33 1/3% | |
| 4418.29.80.30 | Flush doors[No.] | Estimate → | |||
| 4418.29.80.60 | Other[No.] | Estimate → | |||
| 4418.30.01.00 | Posts and beams other than products of subheadings 4418.81 to 4418.89[kg] | 3.2% | Free (A*,AU,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG) | 33 1/3% | Estimate → |
| 4418.40.00.00 | Formwork (shuttering) for concrete constructional work[kg] | 3.2% | Free (A,AU,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG) | 33 1/3% | Estimate → |
| 4418.50.00 | Shingles and shakes | Free | Free | ||
| Shingles: | |||||
| 4418.50.00.10 | Of western red cedar[square, kg] | Estimate → | |||
| 4418.50.00.30 | Other[square, kg] | Estimate → | |||
| 4418.50.00.50 | Other[square, kg] | Estimate → | |||
| Assembled flooring panels: | |||||
| 4418.73 | Of bamboo or with at least the top layer (wear layer) of bamboo: | ||||
| For mosaic floors: | |||||
| 4418.73.10.00 | Solid[m2] | Free | 33 1/3% | Estimate → | |
| Other: | |||||
| 4418.73.20.00 | Having a face ply more than 6 mm in thickness[m2] | Free | 33 1/3% | Estimate → | |
| 4418.73.30.00 | Other[m2] | 8% | Free (A*,AU,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG) | 40% | Estimate → |
| Other, multilayer: | |||||
| 4418.73.40.00 | Having a face ply more than 6 mm in thickness[m2] | 3.2% | Free (A*,AU,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG) | 33 1/3% | Estimate → |
| Other: | |||||
| 4418.73.60.00 | Of unidirectional bamboo[m2] | Free | 40% | Estimate → | |
| 4418.73.70.00 | Other[m2] | 5% | Free (A*,AU,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG) | 40% | Estimate → |
| 4418.73.90.00 | Other[m2] | 3.2% | Free (A*,AU,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG) | 33 1/3% | Estimate → |
| 4418.74 | Other, for mosaic floors: | ||||
| 4418.74.10.00 | Solid[m2] | Free | 33 1/3% | Estimate → | |
| Other: | |||||
| 4418.74.20.00 | Having a face ply more than 6 mm in thickness[m2] | Free | 33 1/3% | Estimate → | |
| 4418.74.90.00 | Other[m2] | 8% | Free (A*,AU,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG) | 40% | Estimate → |
| 4418.75 | Other, multilayer: | ||||
| 4418.75.40.00 | Having a face ply more than 6 mm in thickness[m2] | 3.2% | Free (A*,AU,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG) | 33 1/3% | Estimate → |
| 4418.75.70.00 | Other[m2] | 5% | Free (A*,AU,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG) | 40% | Estimate → |
| 4418.79.01.00 | Other[m2] | 3.2% | Free (A*,AU,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG) | 33 1/3% | Estimate → |
| Engineered structural timber products: | |||||
| 4418.81.00.00 | Glue-laminated timber (glulam)[kg] | 3.2% | Free (A*,AU,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG) | 33 1/3% | Estimate → |
| 4418.82.00.00 | Cross-laminated timber (CLT or X-lam)[kg] | 3.2% | Free (A*,AU,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG) | 33 1/3% | Estimate → |
| 4418.83.00.00 | I-beams[kg] | 3.2% | Free (A*,AU,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG) | 33 1/3% | Estimate → |
| 4418.89.00.00 | Other[kg] | 3.2% | Free (A*,AU,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG) | 33 1/3% | Estimate → |
| Other: | |||||
| 4418.91 | Of bamboo: | ||||
| 4418.91.10.00 | Drilled or notched lumber studs[m3] | Free | $1.70/m3 | Estimate → | |
| 4418.91.91 | Other | 3.2% | Free (A*,AU,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG) | 33 1/3% | |
| 4418.91.91.05 | Wood flooring[m2, m3] | Estimate → | |||
| Other: | |||||
| 4418.91.91.10 | Arches, laminated[kg] | Estimate → | |||
| 4418.91.91.20 | Roof trusses[kg] | Estimate → | |||
| 4418.91.91.40 | Other fabricated structural wood members[kg] | Estimate → | |||
| 4418.91.91.50 | Prefabricated partitions and panels for buildings[kg] | Estimate → | |||
| 4418.91.91.95 | Other[kg] | Estimate → | |||
| 4418.92.00.00 | Cellular wood panels[kg] | 3.2% | Free (A*,AU,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG) | 33 1/3% | Estimate → |
| 4418.99 | Other: | ||||
| 4418.99.10.00 | Drilled or notched lumber studs[m3] | Free | $1.70/m3 | Estimate → | |
| 4418.99.91 | Other | 3.2% | Free (A*,AU,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG) | 33 1/3% | |
| 4418.99.91.05 | Wood flooring[m2, m3] | Estimate → | |||
| Other: | |||||
| 4418.99.91.10 | Arches, laminated[kg] | Estimate → | |||
| 4418.99.91.20 | Roof trusses[kg] | Estimate → | |||
| 4418.99.91.40 | Other fabricated structural wood members[kg] | Estimate → | |||
| 4418.99.91.50 | Prefabricated partitions and panels for buildings[kg] | Estimate → | |||
| 4418.99.91.95 | Other[kg] | Estimate → |
50 lines shown. Statistical suffixes (the last two digits) inherit the rate of the 8-digit subheading above them.
Example: base duty and fees on $10000
For HTS 4418.11.00.00 at the general rate of 3.2%, shipped by ocean, before any Chapter 99 tariffs:
| Base duty (3.2%) | $320.00 |
| Merchandise Processing Fee (0.3464%, min $34.58) | $34.64 |
| Harbor Maintenance Fee (0.125%) | $12.50 |
| Duty and fees | $367.14 |
Origin-specific tariffs can multiply this. Run this example from China or from Mexico to see every line.
Special program codes in this heading
- A, A*, A+
- Generalized System of Preferences (GSP)
- AU
- U.S.–Australia FTA
- BH
- U.S.–Bahrain FTA
- CL
- U.S.–Chile FTA
- CO
- U.S.–Colombia Trade Promotion Agreement
- D
- African Growth and Opportunity Act (AGOA)
- E, E*
- Caribbean Basin Economic Recovery Act
- IL
- U.S.–Israel FTA
- JO
- U.S.–Jordan FTA
- KR
- U.S.–Korea FTA (KORUS)
- MA
- U.S.–Morocco FTA
- OM
- U.S.–Oman FTA
- P, P+
- CAFTA-DR
- PA
- U.S.–Panama Trade Promotion Agreement
- PE
- U.S.–Peru Trade Promotion Agreement
- S, S+
- USMCA (United States–Mexico–Canada Agreement)
- SG
- U.S.–Singapore FTA
A special rate applies only when the goods qualify under that program's rules of origin and the claim is made at entry.
Duty by country of origin
Frequently asked questions
What is the duty rate for HTS 4418?
Heading 4418 has 31 rate lines. The general (MFN) duty rates are 3.2% (15 lines), Free (8 lines), 4.8% (4 lines), 8% (2 lines). Products of free trade agreement partners may enter at the special rate, and Column 2 rates apply to countries without normal trade relations. Chapter 99 tariffs can be added on top: calculate the full amount.
Do Section 301, 232 or 201 tariffs apply to HTS 4418?
It depends on the 8- or 10-digit subheading, the country of origin, the entry date and, for Section 232, the metal content. These additional duties are listed in Chapter 99 of the HTS. The free duty calculator checks each program for a given code, origin and date and shows which apply and why.
What fees are added to an import under HTS 4418?
Formal entries pay the Merchandise Processing Fee of 0.3464% of value (minimum $34.58, maximum $670.86 in FY2027). Ocean shipments also pay the Harbor Maintenance Fee of 0.125% of value. See the import duty calculator for how they combine.