U.S. imports of Small Natural Stone Tiles, Cubes & Colored Stone Granules (SITC 66133) totaled $9.6M in August 2026, imported from 27 countries.
Importers of Small Natural Stone Tiles, Cubes & Colored Stone Granules paid $932K in duties in August 2026, an average duty rate of 9.40% — duty actually collected as a share of the imports that cleared customs, not the published tariff schedule.
Last updated: August 2026 dataDefined by a precise dimensional threshold — the largest surface area must fit within a square whose side is under 7 cm — these small-format natural stone tiles, cubes, and mosaic tesserae serve the decorative tile, mosaic art, and landscaping industries. Colored stone granules and chippings in this heading are widely used as surface dressings for roofing membranes, resin-bound pathways, and aquarium substrates. The strict size criterion is the primary classification boundary: pieces exceeding the 7 cm threshold shift to other stone-product headings. Importers should document stone type, dimensions, and surface treatment to support correct classification.
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797 import shipments a month
The rule measures the largest surface area of the piece: if that surface can be enclosed within a square whose side is less than 7 cm, the piece qualifies here. Pieces where the largest face exceeds that square — even if only slightly — are classified under other stone-product headings. Importers should obtain dimensional certifications from suppliers and retain them for customs review.
Yes, colored granules, flakes, and chippings of natural stone intended for roofing, flooring, or decorative surface applications are included here, provided they meet the size criteria. Products that have been further processed into manufactured aggregates or coated with binders may shift to other headings, so the processing method should be confirmed before classification.
Basic heading 345 of 766 in section 6
Basic heading 66133 · $9.6M of $27.0B
Imports · August 2026
origin
Canada and Malaysia together supply 67% of it. China pays 41.7% duty; Canada 0.0%.
customs district
Census does not publish district detail for this classification system.
destination
Census does not publish state detail for this classification system.
entry
Census does not publish port detail for this classification system.
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ImportsExports
Imports
$9.6MYoY · free account
Exports
$415KYoY · free account
12-mo low · imports
Low · free accountOver the twelve months to August 2026, the U.S. imported $118.2M of Small Natural Stone Tiles, Cubes & Colored Stone Granules and exported $3.2M.
Through August 2026. Source: U.S. Census Bureau.