Perforated Concrete Partition Blocks from Canada
These concrete blocks feature holes for wiring or piping, ideal for interior partition walls in commercial buildings. Under HTS 6810.11.00.70 as other unreinforced concrete building blocks for construction. Perforations aid installation without altering classification.
Duty Rate — Canada → United States
13.2%
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
• Detail perforation specs and load ratings in entry docs to justify building block status
• Test for uniformity; non-compliant blocks risk rejection under construction material regs