The classification of steel shelving depends on its design, end use, and whether it is freestanding or wall-mounted. Freestanding commercial shelving is often classified as metal furniture, while heavy industrial racking may fall under metal structures. The distinction affects applicable duty rates and potential trade remedy exposure, so a binding ruling from CBP may be warranted for large-volume imports.

Demountable partition systems occupy a gray area between furniture and building components. CBP has issued rulings classifying some modular partition systems as furniture and others as interior fittings depending on their permanence, material, and installation method. Importers should obtain a binding ruling or consult a customs broker before the first shipment.