Chapter 44 covers wood and articles of wood, wood charcoal, including logs, sawn timber, veneer sheets, builders' joinery and carpentry of wood, wooden furniture, etc. This chapter does not include furniture mainly classified under Chapter 94, paper products under Chapter 48, mineral wool wood products under Chapter 68, etc. Wooden windows and window frames, as builders' joinery and carpentry of wood, fall within the scope of this chapter. Heading 4418 covers builders' joinery and carpentry of wood, including wooden windows, wooden doors, wooden stairs, wooden formwork, wooden shingles, wooden posts, etc. Specifically includes assembled or unassembled components such as window frames, door frames, stair sections, etc., but note that furniture-type wood products under Chapter 94 are not included. Code 441810 has 6 digits: the first 2 digits "44" represent Chapter 44 (Wood and Articles of Wood); digits 3-4 "18" represent heading 4418 (Builders' Joinery and Carpentry of Wood); digits 5-6 "10" represent subheading 441810 (Wooden Windows and Window Frames). The subheading is further distinguished from 441820 (Wooden Doors and Their Frames), 441840 (Wooden Formwork), etc. The product is wooden windows and window frames, which are builders' joinery and carpentry of wood and are not furniture. Therefore, it is classified under heading 4418, rather than furniture under Chapter 94 (e.g., wooden windows used as furniture would be classified under 9403). It is also distinguished from other wood products under Chapter 44 such as 4412 (Plywood) or other subheadings under 4418.
Chapter
Chapter 44 covers wood and articles of wood, wood charcoal, including logs, sawn timber, veneer sheets, builders' joinery and carpentry of wood, wooden furniture, etc. This chapter does not include furniture mainly classified under Chapter 94, paper products under Chapter 48, mineral wool wood products under Chapter 68, etc. Wooden windows and window frames, as builders' joinery and carpentry of wood, fall within the scope of this chapter.
Heading
Heading 4418 covers builders' joinery and carpentry of wood, including wooden windows, wooden doors, wooden stairs, wooden formwork, wooden shingles, wooden posts, etc. Specifically includes assembled or unassembled components such as window frames, door frames, stair sections, etc., but note that furniture-type wood products under Chapter 94 are not included.
Digit Breakdown
Code 441810 has 6 digits: the first 2 digits "44" represent Chapter 44 (Wood and Articles of Wood); digits 3-4 "18" represent heading 4418 (Builders' Joinery and Carpentry of Wood); digits 5-6 "10" represent subheading 441810 (Wooden Windows and Window Frames). The subheading is further distinguished from 441820 (Wooden Doors and Their Frames), 441840 (Wooden Formwork), etc.
Classification Basis
The product is wooden windows and window frames, which are builders' joinery and carpentry of wood and are not furniture. Therefore, it is classified under heading 4418, rather than furniture under Chapter 94 (e.g., wooden windows used as furniture would be classified under 9403). It is also distinguished from other wood products under Chapter 44 such as 4412 (Plywood) or other subheadings under 4418.
📝 Declaration Elements
Product Name: Fill in the product name, such as "Wooden Window" or "Wooden Window Frame", which must correspond to the HS code. Material: Specific wood species, such as pine, oak, fir, etc., and whether it has been preservative-treated must be indicated. Specifications and Dimensions: Length, width, and thickness of the window or window frame, usually in millimeters or centimeters. Processing Technique: Such as whether it is assembled, whether it has glass, whether it is coated, etc. Purpose: Such as for construction, for decoration, etc., and it must be clearly stated as non-furniture use. Brand: If there is a brand, fill in the brand name; if there is no brand, fill in "None". Model: If there is a model, fill it in; if there is no model, fill in "None". Product Name: Wooden Window Frame; Material: Pine, preservative-treated; Specifications and Dimensions: 1200mm×800mm×50mm; Processing Technique: Assembled, without glass, uncoated; Purpose: For construction; Brand: None; Model: None. Failing to state whether it has glass; if it has glass, it may need to be classified under different rules. Material only written as "wood" without specifying the specific tree species, affecting customs review. Purpose mistakenly written as furniture, leading to incorrect classification under Chapter 94.
Product Name
Fill in the product name, such as "Wooden Window" or "Wooden Window Frame", which must correspond to the HS code.
⚠️ Mistakenly filling in "Wooden Window" when it is actually a window frame, or confusing it with "Wooden Door".
Material
Specific wood species, such as pine, oak, fir, etc., and whether it has been preservative-treated must be indicated.
⚠️ Only writing "wood" without specifying the specific tree species, or failing to state whether it has been treated.
Specifications and Dimensions
Length, width, and thickness of the window or window frame, usually in millimeters or centimeters.
⚠️ Omitting thickness or using inconsistent dimension units.
Processing Technique
Such as whether it is assembled, whether it has glass, whether it is coated, etc.
⚠️ Failing to state whether it has glass, leading to classification errors.
Purpose
Such as for construction, for decoration, etc., and it must be clearly stated as non-furniture use.
⚠️ Mistakenly writing it as furniture use, which may lead to classification under Chapter 94.
Brand
If there is a brand, fill in the brand name; if there is no brand, fill in "None".
⚠️ Omitting brand information or filling it in incompletely.
Model
If there is a model, fill it in; if there is no model, fill in "None".
⚠️ Confusing model with specifications.
Example： Product Name: Wooden Window Frame; Material: Pine, preservative-treated; Specifications and Dimensions: 1200mm×800mm×50mm; Processing Technique: Assembled, without glass, uncoated; Purpose: For construction; Brand: None; Model: None.
Common Mistakes：
Failing to state whether it has glass; if it has glass, it may need to be classified under different rules.
Material only written as "wood" without specifying the specific tree species, affecting customs review.
Purpose mistakenly written as furniture, leading to incorrect classification under Chapter 94.
🎯 Classification Logic
Core basis for classification: The product is wooden windows and window frames, which are builders' joinery and carpentry of wood and conform to the description of heading 4418. Need to confirm: 1) The material is wood; 2) The purpose is for construction; 3) It is not furniture. If the window frame is used as a furniture part, it may be classified under 9403. Also need to note whether it has glass; if it has glass and the glass constitutes the essential character, it may be classified under Chapter 70. 441820 Wooden Doors and Their Frames: 441820 is wooden doors and their frames, while 441810 is wooden windows and window frames. The difference lies in whether the product is a door or a window. 441840 Wooden Formwork: 441840 is wooden formwork for construction, used for concrete pouring, while 441810 is windows and window frames, used for building openings. 940340 Wooden Kitchen Furniture: 940340 is wooden furniture for kitchens, while 441810 is wooden windows for construction, not furniture. 441890 Other Builders' Joinery and Carpentry of Wood: 441890 is other builders' joinery and carpentry of wood, such as wooden stairs, wooden posts, etc., while 441810 specifically refers to windows and window frames. Is it confirmed to be a wooden window or window frame? Is it used for construction rather than furniture? Is it without glass or is glass not the essential character? Is it assembled or unassembled? Is it distinguished from adjacent codes 441820 and 441840?
Basis
Core basis for classification: The product is wooden windows and window frames, which are builders' joinery and carpentry of wood and conform to the description of heading 4418. Need to confirm: 1) The material is wood; 2) The purpose is for construction; 3) It is not furniture. If the window frame is used as a furniture part, it may be classified under 9403. Also need to note whether it has glass; if it has glass and the glass constitutes the essential character, it may be classified under Chapter 70.
Confused Codes：
441820 - Wooden Doors and Their Frames
441820 is wooden doors and their frames, while 441810 is wooden windows and window frames. The difference lies in whether the product is a door or a window.
441840 - Wooden Formwork
441840 is wooden formwork for construction, used for concrete pouring, while 441810 is windows and window frames, used for building openings.
940340 - Wooden Kitchen Furniture
940340 is wooden furniture for kitchens, while 441810 is wooden windows for construction, not furniture.
441890 - Other Builders' Joinery and Carpentry of Wood
441890 is other builders' joinery and carpentry of wood, such as wooden stairs, wooden posts, etc., while 441810 specifically refers to windows and window frames.
Self-Check：
✓ Is it confirmed to be a wooden window or window frame?
✓ Is it used for construction rather than furniture?
✓ Is it without glass or is glass not the essential character?
✓ Is it assembled or unassembled?
✓ Is it distinguished from adjacent codes 441820 and 441840?
❓ FAQ
How should wooden window frames with glass be classified? If the glass is already installed and constitutes the essential character, it may be classified under Chapter 70 (Glass and Glassware); if the glass is merely accessory, it remains under 441810. Judgment should be based on the actual state. What is the difference in classification between wooden window frames and wooden door frames? Wooden window frames are classified under 441810, and wooden door frames under 441820. The main difference lies in the purpose: windows are for lighting and ventilation, doors are for passage. How can I check the import tariff rate for 441810? It can be checked through the official website of the General Administration of Customs or the International Trade Single Window. Tariff rates vary by country, trade agreements, etc., and the latest announcements shall prevail. What elements should be noted when declaring 441810? Product name, material, specifications, processing technique, purpose, etc., must be accurately filled in, especially stating whether it has glass, to avoid classification errors. If a wooden window frame is second-hand, is it still classified under 441810? Yes, but it must be declared as used, which may involve quarantine requirements. The classification remains unchanged, but the regulatory conditions may differ. How to distinguish 441810 from 441890? 441810 specifically refers to wooden windows and window frames, while 441890 is other builders' joinery and carpentry of wood, such as wooden stairs, wooden posts, etc. Judgment should be based on the specific product. How should cross-border e-commerce sales of wooden window frames be declared? They must be declared according to the actual product, with detailed descriptions provided, to ensure correct classification. Personal items and commercial goods are subject to different regulation, and relevant regulations must be followed. Does coating affect the classification of wooden window frames? Coating does not affect the classification; it remains under 441810, but it must be stated in the processing technique. If the coating material constitutes the essential character, it may have an impact, but usually it does not change the classification.
Q: How should wooden window frames with glass be classified?
A: If the glass is already installed and constitutes the essential character, it may be classified under Chapter 70 (Glass and Glassware); if the glass is merely accessory, it remains under 441810. Judgment should be based on the actual state.
Q: What is the difference in classification between wooden window frames and wooden door frames?
A: Wooden window frames are classified under 441810, and wooden door frames under 441820. The main difference lies in the purpose: windows are for lighting and ventilation, doors are for passage.
Q: How can I check the import tariff rate for 441810?
A: It can be checked through the official website of the General Administration of Customs or the International Trade Single Window. Tariff rates vary by country, trade agreements, etc., and the latest announcements shall prevail.
Q: What elements should be noted when declaring 441810?
A: Product name, material, specifications, processing technique, purpose, etc., must be accurately filled in, especially stating whether it has glass, to avoid classification errors.
Q: If a wooden window frame is second-hand, is it still classified under 441810?
A: Yes, but it must be declared as used, which may involve quarantine requirements. The classification remains unchanged, but the regulatory conditions may differ.
Q: How to distinguish 441810 from 441890?
A: 441810 specifically refers to wooden windows and window frames, while 441890 is other builders' joinery and carpentry of wood, such as wooden stairs, wooden posts, etc. Judgment should be based on the specific product.
Q: How should cross-border e-commerce sales of wooden window frames be declared?
A: They must be declared according to the actual product, with detailed descriptions provided, to ensure correct classification. Personal items and commercial goods are subject to different regulation, and relevant regulations must be followed.
Q: Does coating affect the classification of wooden window frames?
A: Coating does not affect the classification; it remains under 441810, but it must be stated in the processing technique. If the coating material constitutes the essential character, it may have an impact, but usually it does not change the classification.
⚠️ Disclaimer: HS code classification, declaration elements, tariff rates and regulatory conditions on this page are for reference only and do not constitute legal advice on customs classification. Tariff rates and regulations are subject to change; the latest announcements from the General Administration of Customs and on-site determinations shall prevail. Please consult professional customs brokers or customs authorities before import/export.