WALL PANEL MOUNTING METHOD

PROBLEM TO BE SOLVED: To provide a wall panel mounting method with satisfactory workability.SOLUTION: A wall panel mounting method includes the steps of: abutting a bed steel member 6 to a wooden horizontal member 3; inserting a centering jig 31 into a screw through hole 14 that is a round hole formed on the bed steel member 6, the centering jig 31 including a centering part 32 in the same size as a diameter of the round hole; forming a center recess 30 by pushing the centering jig 31; and threading a lag screw 8 into the center recess 30 while aligning a pointed end of the lag screw 8 to the center recess 30. The centering jig 31 is capable of forming the center recess 30 which is accurately positioned in the center of the screw through hole 14 that is the round hole. Only by aligning the pointed end of the lag screw 8 to the center recess 30, the center of the lag screw 8 can be accurately aligned to the center of the screw through hole 14. Therefore, aligning work of the lag screw 8 is facilitated and workability of threading to which accuracy is required can be improved.