Multiple-walled insulating units of glass
1 declarable lines
Heading 7008 covers multiple-walled insulating units of glass. These are sealed glass assemblies with two or more panes and an insulating space between them. The heading has one declarable line, 7008.00.00.00, with a general (MFN) duty rate of 3.9%.
Products in this heading
- Sealed double-pane insulating glass units for windows
- Triple-pane sealed insulating glass units for doors
- Insulating glass units for curtain wall facades
- Gas-filled insulating glass units
- Acoustic insulating glass units for exterior windows
- Sealed insulating glass panels for skylights
- Replacement sealed insulated glass units for windows
How to choose the right subheading
- Number of glass panes: two or more panes point to heading 7008; a single pane does not.
- Sealed insulating space: the panes must be separated by a sealed gap, often with a spacer and air or gas.
- Framing: unframed units stay in heading 7008; frames or fittings with other materials can change classification.
- Edge construction: a sealed spacer and edge seal distinguish these units from laminated or ordinary glass.
- End use: common uses include windows, doors, facades, skylights, and similar glazing.
Often confused with
- Heading 7005Single-pane float glass
Only one glass sheet, not a sealed multi-pane unit.
- Heading 7007Laminated safety glass
Bonded glass layers with an interlayer, not separated by a sealed insulating space.
- Heading 7009Glass mirrors
Mirror coating makes it a mirror article.
- Framed insulating window units
A frame or fittings can take the article out of heading 7008; classification depends on the frame material and the complete article.
Frequently asked questions
What is the HTS code for double-pane insulated glass units?
Double-pane sealed insulating glass units are classified in 7008.00.00.00. The general (MFN) duty rate for 7008.00.00.00 is 3.9%.
What is the duty on multiple-walled insulating units of glass?
The general (MFN) duty rate for 7008.00.00.00 is 3.9%.
How do I classify insulated glass for a window?
If it is an unframed unit of two or more glass panes separated by a sealed space, classify it in 7008.00.00.00 at the general (MFN) rate of 3.9%. Framing or other fitted materials can move classification out of heading 7008.
Guide written from the official schedule text. Rates quoted are general (MFN) rates; check the line page for trade agreement rates and the classification of your exact product.