Which statement about a hip rafter is true?

Which statement about a hip rafter is true?

• A. It extends from the top plate to the hip rafter.
• B. It lies along the plane of the interior ceiling.
• C. It runs from an outside corner of a building to the ridge board, usually at 45 degrees to the ridge.
• D. It is a vertical member at the roof center.

Answer: (C)

A hip rafter is the sloped member that defines the hip on a roof, running from an outside corner of the building up to the ridge board. This places it along the intersection of two roof planes, forming the hip line. Because it follows the roof slope, its angle to the ridge is typically around 45 degrees, though it varies with roof pitch. It is not aligned with the interior ceiling plane, and it isn’t a vertical member at the roof center. It also isn’t simply from the top plate to another member—the hip rafter’s role is to connect the outside corner to the ridge, shaping the hip edge of the roof.

A hip rafter is the sloped member that defines the hip on a roof, running from an outside corner of the building up to the ridge board. This places it along the intersection of two roof planes, forming the hip line. Because it follows the roof slope, its angle to the ridge is typically around 45 degrees, though it varies with roof pitch. It is not aligned with the interior ceiling plane, and it isn’t a vertical member at the roof center. It also isn’t simply from the top plate to another member—the hip rafter’s role is to connect the outside corner to the ridge, shaping the hip edge of the roof.