The formation of cellular core for sandwich wall constructions made of perforated steel band is presented in the paper. The information about the main mechanical properties of perforated tapes and plates is provided. Basic technological methods for obtaining cellular structures from perforated metallic tape achieved from waste material by stamping are suggested. The main attention is focused on the analysis of the compressive strength of key elements of obtained cellular structures. Examples of the use of cellular structures made of perforated metallic materials in sandwich wall constructions are given. The main benefits of perforated metallic materials usage in sandwich wall's construction are outlined.