stair run

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run, 3
1. In roofing, the horizontal distance from the face of a wall to the ridge of the roof.
2. In stairways, the width of a single stair tread.
3. The horizontal distance covered by a flight of steps.
4. The runway or track for a sash.
5. A small stream of paint flowing vertically on a
References in periodicals archive ?
12 m railing stairs, horizontally as fall protection and to form, total railing height 1 530 mm, height of railing of OK dirt stair run 1 180 mm,
Our stair run had eight treads, so using this formula, we ended up with 11.