Pressure-Treated Pine Shingles from United States
Southern yellow pine shingles treated with micronized copper azole (MCA) for rot and insect resistance, sawn to uniform dimensions for exterior siding. These treated shingles are classified under tariff item 4418.50.00 as wood shingles for builders' carpentry.
Duty Rate — United States → Canada
0%
Import Tips
• Verify that the MCA treatment complies with Canadian pesticide regulations and provide documentation to CBSA
• Declare the treatment type on the customs form to avoid reclassification