PURPOSE: To make the fitting of hand rails easier by a method in which hand rail-fitting metals are provided to the peripheral side of the surface of a board with mirror, and hand rails are mounted on the fitting metals.

CONSTITUTION: A mirror 5 is provided on the surface of a vertically long rectangular plastic board 1, and hand rail-fitting metals 2 are affixed to the four corners of the board 1 with bolts 11. The board 1 is attached to the wall. Metal hand rails 3 are mounted with bolts 22 to the brackets 21 of the metals 2 and the ends of the metals 2 and the hand rails 3 are covered with corner covers 4. A plastic hand rail cover 6 of a grooved cross section is fitted on the rails 3 by means of the elasticity of the cover 6. Hand rails 3 can thus be firmly fitted with good appearance.