To provide staircase equipment which enables persons different in stature to smoothly ascend/descend on the corner section of spiral stairs by gripping a handrail bar with their hands, and which is excellent in safety because their clothes or feet are not caught or sandwiched in the lower end of the handrail bar.

The lower end of the handrail bar 2, which is vertically provided at the corner section of the spiral stairs 1, is held on the tread board 3 of the spiral stairs 1.