To simply suspendignly support an outer wall panel on a gable end side to an inclined beam.

Using a support metal fitting 21 composed of an attaching plate 23 which is firmly attached to the one face side of a vertical plate at its one end and inclines in a direction the same as an inclined beam 20, and a horizontal support plate 24 to be firmly attached to the other face side at its one end, the attaching plate 23 is abutted on the upper face of the upper flange 30 of the inclined beam 20 and firmly attached with an inclined beam bolt 32, and the bolt 32 is inserted through the bolt hole of the support plate 24, and an outside wall panel 1 is supported with a support bolt 27 suspended from the support plate 24.