A slatted base specifically designed to support a mattress is classified as a mattress support rather than as general wooden furniture, because its dedicated function as a mattress foundation is the defining characteristic. However, a complete bed frame that incorporates a slatted base may be classified differently as a complete article of furniture, so the scope of what is being imported matters.

Not automatically. Antidumping and countervailing duty orders on mattresses have specific scope language, and mattress supports are generally treated as a separate product. However, importers should review the exact scope of any active orders and, if uncertain, request a scope ruling from the Department of Commerce to confirm whether their specific product is covered.