Please choose the correct ending to complete the given sentence: Home and Garden: [header] How to measure for stairs [title] Familiarize yourself with some basic terminology. [step] The vertical section of a step is referred to as the " riser, " and the horizontal section is called the " tread. " the " stringer " runs the length of the stairs and provides support.

Ending1: The outside edge of the stair is called the upright edge. The inside edge of the stair is called the frame. Ending2: [substeps] The vertical section of a stair length is referred to as the " spindle, " and involves long, horizontal bars. A stringer is not a unit you can measure with a scale or measuring device, but you should learn basic labeling and measuring terminology before attempting to measure. Ending3: [title] Use the measuring tape to calculate the distance from the bottom of the first floor to the top of the second floor. [step] Note that this measurement should be made to the top of the second floor, not to the bottom of it. Ending4: [substeps] The fencer can help guide you as you take the step from a standing position, rather than using a tester or measuring device like a compass. [title] Examine the shoe's ball shape.

Answer format: ending1/ending2/ending3/ending4