Pre-drilled Acoustic Studs from Canada
Resilient channel pre-drilled 2x4 studs for sound-rated partition walls with staggered notch patterns. Under HTS 4418.99.10.00 as drilled lumber studs for specialized carpentry in commercial interiors. Reduces sound transmission between spaces.
Duty Rate — Canada → United States
10%
Rate breakdown
9903.05.2910%Section 301 (forced labor) — additional 10% ad valorem on products of Canada
Import Tips
• Include STC-rating documentation supporting acoustic design claims
• Ensure drill patterns match US building specs to avoid re-work
• Verify no synthetic resilient channels trigger plastics classification