To easily and quickly connect a plurality of support materials for wiring and piping without applying machining measures such as opening holes in attachment positions by a drill, and to provide a support material for wiring and piping, which properly attaches various types of arrangement members to suitable positions.

In attachment tools (a fixing member 70 and a member 6 to be fixed) for connecting the support materials 100 for wiring and piping, and attaching the arrangement members, a housing passage 50 for housing the member 60 to be fixed is formed on the support material 100 for wiring and piping.