String
1. The sloping board that carries the treads and risers of a staircase.
2. A board that is nailed to the exterior wall sheathing in order to support cross members in floors or ceilings.
1. The sloping board that carries the treads and risers of a staircase.
2. A board that is nailed to the exterior wall sheathing in order to support cross members in floors or ceilings.
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