To reduce execution cost by fixing a stud whose edge is folded to a longer side header face oppositely disposed to mutually adjoining partition panels to reinforce it by an adhesive or nails to generate a strength without use of studs or furring strips.

A plurality of partition panels 12, 13 formed of lightweight concrete boards (ALC), cemented chip boards, gypsum boards, calcium silicate boards, etc., are connected to form an assembled panel 11. A stud 14 having a U-shaped section whose end is bent at 15-90 degrees is fixed with an adhesive, screws, nails, etc., at the header face of the end of the assembled panel 11. Meanwhile, besides a U-shaped section, the sectional shape can be V-shaped or polygonal. A fire resistive material or the like is injected in a gap or a hollow finally generated in erection to close the gap or the hollow in order to improve shock-resistance or sound insulation. In this way, a panel having a practical strength and erectable upright can be easily obtained.