Cut Tufa Stone Slabs
Cut tufa stone slabs are a porous calcareous stone formed by mineral springs, sawn into flat slabs for garden walls and decorative landscaping. They are classified here as worked monumental or building stone, simply cut or sawn with a flat or even surface, and are not slate or goods of heading 68.01.
Import Duty Rates by Country of Origin
| Origin Country | MFN Tariff | Surtaxes | Total Effective Rate |
|---|---|---|---|
| 🇨🇳China | 5% | — | 5% |
| 🇲🇽Mexico | 5% | — | 5% |
| 🇺🇸United States | 5% | — | 5% |
| 🇩🇪Germany | 5% | — | 5% |
| 🇯🇵Japan | 5% | — | 5% |
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If the tufa is granite or similar igneous rock
Granite and other igneous stones are classified separately under the simply cut or sawn monumental or building stone subheading.
If the slabs are further worked (e.g., polished, flamed)
Further worked stone of this type falls under the 'other' monumental or building stone heading.
Not sure which classification is right?
The Tariff Assistant works through the GRI rules on your specific product to reach the right tariff item — and can price the duty on it in the same conversation.
Import Tips & Compliance
• Confirm the tufa is calcareous (not volcanic tuff) to avoid misclassification; volcanic tuff may fall under a different subheading
• Provide the CBSA with a detailed product description and the stone's geological composition
• Keep invoices and shipping documents showing the slabs are simply sawn with flat surfaces
Related Products under Tariff item 6802.29.00
Basalt Paver Slabs
Basalt paver slabs are dense basalt sawn flat for high-end paving in public monuments. They fall under this tariff item as other monumental or building stone, simply cut or sawn with a flat or even surface, and are not slate or goods of heading 68.01.
Cut Coquina Shellstone Blocks
Cut coquina shellstone blocks are a calcareous limestone formed from cemented seashells, sawn into blocks with flat faces for rustic walls and fireplaces. They fall under this tariff item as worked monumental or building stone, simply cut or sawn with a flat or even surface, and are not slate or goods of heading 68.01.
Dolomite Stair Treads
Dolomite stair treads are sawn with flat even surfaces for interior monumental staircases. They fall under this tariff item as other monumental or building stone, simply cut or sawn with a flat or even surface, and are not slate or goods of heading 68.01.
Flint Architectural Cladding
Flint architectural cladding panels are knapped flint sawn flat for historic building restoration. They fall under this tariff item as other monumental or building stone, simply cut or sawn with a flat or even surface, and are not slate or goods of heading 68.01.
Limestone Veneer Panels
Limestone veneer panels are thin limestone panels sawn with flat faces for interior wall veneer applications. They fall under this tariff item as other monumental or building stone, simply cut or sawn with a flat or even surface, and are not slate or goods of heading 68.01.
Onyx Window Sills
Onyx window sills are translucent onyx sawn flat for luxury building windowsills. They fall under this tariff item as other monumental or building stone, simply cut or sawn with a flat or even surface, and are not slate or goods of heading 68.01.