Fireplace Ceramic Backer Bricks from Canada
High-density ceramic bricks used behind firebrick linings in fireplaces for structural support and heat distribution. Fired clay products qualify under HTS 6904.90 as other ceramic building bricks, provided not refractory.
Duty Rate — Canada → United States
10%
Rate breakdown
9903.05.2910%Except for products described in headings 9903.05.85–9903.05.93, articles the product of Canada, as provided for in U.S. note 52 to this subchapter
Import Tips
• Certify maximum service temperature <1000°C to avoid refractory classification
• Bundle with installation guides showing building use