Standard International Trade Classification
U.S. exports of Marble, Travertine, Calcareous Building Stone & Alabaster, Roughly Trimmed or in Blocks (SITC 27312) totaled $1.2M in August 2026.
Importers of Marble, Travertine, Calcareous Building Stone & Alabaster, Roughly Trimmed or in Blocks paid $71K in duties in August 2026, an average duty rate of 10.44% — duty actually collected as a share of the imports that cleared customs, not the published tariff schedule.
Last updated: August 2026 dataMarble, travertine, alabaster, and other calcareous monumental or building stones at the block or rough-slab stage are widely traded inputs for the construction, countertop fabrication, and monument industries. Travertine in particular has seen sustained demand in residential and commercial flooring applications, while marble blocks feed both domestic fabrication shops and re-export finishing operations. Classification at this stage depends on the degree of working: material that has been polished, profiled, or cut to non-rectangular shapes is typically classified under finished stone provisions. The distinction between 'calcareous' and non-calcareous stone is a recurring classification question when dealing with mixed-mineral building stones.
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58 import shipments a month
Both travertine and marble are calcareous stones and fall within this heading at the rough or block stage. The commercial distinction matters more for finished products, where surface treatment and end-use can affect classification. At the block or rough-slab stage, both are captured here provided they have not been further worked into finished architectural elements.
Alabaster — a fine-grained gypsum or calcite mineral — is explicitly included in this heading alongside marble and travertine when in rough or block form. However, because alabaster is softer and used primarily for decorative carving rather than structural applications, importers should confirm that the specific product's mineral composition and processing state align with this heading's scope before filing entry.
Basic heading 133 of 239 in section 2
Basic heading 27312 · $1.2M of $7.8B
Exports · August 2026
destination
Italy and Canada together take 83% of it.
customs district
Census does not publish district detail for this classification system.
origin
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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12-mo low · imports
Low · free accountOver the twelve months to August 2026, the U.S. imported $9.8M of Marble, Travertine, Calcareous Building Stone & Alabaster, Roughly Trimmed or in Blocks and exported $10.5M.
Through August 2026. Source: U.S. Census Bureau.