# HS code 4405.00: Wood wool; wood flour

> HS code 4405.00 covers wood wool; wood flour. It sits in heading 44.05 (wood wool; wood flour) in chapter 44 (wood and articles of wood; wood charcoal). It is the only subheading of heading 44.05, so every good of the heading is classified here. National tariff lines under 4405.00 are live on border.bot for the United States (1 line, also used by 1 other country).

Source: https://border.bot/hs-codes/440500
Last updated: 11 October 2026

[HS codes](https://border.bot/hs-codes) / [Chapter 44](https://border.bot/hs-codes/44) / [44.05](https://border.bot/hs-codes/4405) / [4405.00](https://border.bot/hs-codes/440500)

## Key facts

- HS code: 4405.00
- Covers: Wood wool; wood flour
- Heading: [44.05: Wood wool; wood flour](https://border.bot/hs-codes/4405)
- Chapter: [44: Wood and articles of wood; wood charcoal](https://border.bot/hs-codes/44)
- Edition: HS2022
- Duty in the United States: [See its 1 line](https://border.bot/countries/united-states/hs-codes/440500)

## What this code covers

HS code 4405.00 covers wood wool; wood flour.

The legal text of the subheading is “Wood wool; wood flour”, in HS2022.

## What it doesn’t cover

It is the only subheading of heading 44.05, so every good of the heading is classified here.

## How it is structured

4405.00 is a six-digit subheading. Its first two digits, 44, are the chapter; the first four, 4405, are heading 44.05; the last two, 00, identify the subheading within the heading.

Countries add their own digits after these six for their national tariff lines.

- Chapter 44: Wood and articles of wood; wood charcoal
- Heading 44.05: Wood wool; wood flour
- Subheading 4405.00: Wood wool; wood flour

## In other countries

National tariff lines under 4405.00 are live on border.bot for the United States (1 line, also used by 1 other country).

- [United States](https://border.bot/countries/united-states/hs-codes/440500): 1 line, used by 1 other country

- Previous subheading: [4404.20](https://border.bot/hs-codes/440420) Non-coniferous
- Next subheading: [4406.11](https://border.bot/hs-codes/440611) Not impregnated: Coniferous

## Frequently asked questions

### What does HS code 4405.00 cover?

HS code 4405.00 covers wood wool; wood flour.

### Which heading and chapter is HS code 4405.00 in?

HS code 4405.00 is in heading 44.05 (wood wool; wood flour) in chapter 44 (wood and articles of wood; wood charcoal).

### Where are goods of heading 44.05 classified when 4405.00 doesn’t fit?

4405.00 is the only subheading of heading 44.05, so every good of the heading is classified there.

### Which countries’ tariffs list national lines under HS code 4405.00?

National tariff lines under 4405.00 are live on border.bot for the United States (1 line, also used by 1 other country).

## Sources and updates

The Harmonized System legal text comes from border.bot release 2 (edition HS 2022), imported from a file, and has been live since 11 October 2026.

This page was last updated on 11 October 2026.

Guidance from published tariff data, not a binding ruling. For a decision customs must follow, apply to the destination’s customs authority for a binding tariff ruling.

Machine-readable: https://border.bot/hs-codes/440500.json