0001856525 2026-07-01 2026-07-01 false 0001856525 8-K 2026-07-01 Core & Main, Inc. DE 001-40650 86-3149194 1830 Craig Park Court St. Louis MO 63146 (314) 432-4700 false false false false Class A common stock, par value $0.01 per share CNM NYSE false