Insulated Concrete Form (ICF) Blocks
ICF blocks combine expanded polystyrene cores with concrete-receiving shells, poured on-site for walls. HTS 6810.11.00 if imported as preformed concrete building blocks.
Import Duty Rates by Country of Origin
More Specific Codes
This product may fall under a more specific subheading:
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If polystyrene foam without cement shell
Plastic foam blocks alone are Chapter 39 cellular plastics.
If pre-poured into finished forms
Completed insulated panels are prefabricated articles.
If metal-framed ICF systems
Metal structures with concrete infill classify by metal.
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Import Tips & Compliance
• Declare as 'concrete blocks with foam inserts' and specify pourable design
• Ensure structural integrity tests for customs acceptance
Related Products under HTS 6810.11.00
Concrete Hollow Building Blocks
These are precast hollow blocks made from Portland cement, aggregates, and water, used primarily for constructing walls in residential and commercial buildings. They fall under HTS 6810.11.00 as building blocks of concrete, designed for load-bearing and non-load-bearing masonry applications.
Lightweight Concrete Building Bricks
Lightweight bricks produced with expanded clay aggregates or foam in a cement matrix, ideal for partition walls due to reduced weight. They qualify under HTS 6810.11.00 as concrete bricks for building purposes.
Autoclaved Aerated Concrete (AAC) Blocks
AAC blocks are lightweight, precast concrete with air-entraining agents, steam-cured for insulation and fire resistance in modern buildings. HTS 6810.11.00 covers these as concrete building blocks.
Cement Sandwich Building Blocks
Sandwich blocks with a concrete core and insulating foam layers bonded by cement, used for energy-efficient walls. Classified in HTS 6810.11.00 as composite concrete building blocks.
Vibrated Concrete Paver Bricks
Dense, vibrated concrete bricks for pedestrian pavements and driveways, with textured surfaces for grip. Under HTS 6810.11.00 when used as building bricks rather than decorative tiles.
High-Strength Concrete Curb Bricks
Heavy-duty concrete bricks for street curbs and gutters, molded with high cement ratios for durability. Fits HTS 6810.11.00 as specialized building bricks.