Abstract: A supporting member for supporting steel reinforcing bars before casting concrete thereover when making steel-reinforced concrete panels includes an elongated strip of sheet material folded into a U-shape to include a pair of substantially parallel legs at one side of the supporting member joined together by a bent integral juncture at the opposite side of the supporting member. The bent integral juncture is formed with a plurality of axially-spaced slots extending into the legs but terminating short of their bottom edges for receiving and supporting the bars transversely across the legs. Also described are a method of making such a supporting member, and a steel-reinforcement concrete panel including a plurality of such supporting members.