| 摘要 |
An apparatus to measure the height and going of steps in a stair, the apparatus comprising: (a) a first ruler member positionable on a tread, (b) a first indicator slideably attached to the first rule member and positionable against an outer edge of the tread to enable the going of the tread to be measured, (c) a second ruler member positionable adjacent a riser extending from an inner edge of the tread, and, (d) a second indicator slideably attached to the second ruler member and positionable on an adjacent tread. |
