What is the name of the horizontal piece that connects the upper ends of the rafters?

The correct choice refers to the ridge board, which is a crucial component in the roofing framework of a structure. The ridge board serves as the horizontal piece situated at the peak of the roof, where the upper ends of the rafters meet. Its primary function is to provide structural support and help align the rafters, ensuring that they maintain a straight line from the base to the top of the roof. This alignment contributes to the overall stability and strength of the roof structure.

The ridge board plays a significant role in the construction process as it helps distribute the weight of the roofing materials evenly across the rafters. This distribution is essential for maintaining the integrity of the roof, particularly under various weather conditions. Understanding the function of the ridge board is vital for anyone involved in building construction, as it directly impacts the safety and durability of the roof.

The other options do not accurately describe this specific element of the roof structure. A ceiling joist, for example, is used to support the ceiling and is located below the rafters. A landing board typically refers to a horizontal platform at the top of a staircase, while a gable end pertains to the triangular portion of a wall that is formed by the sloping sides of the roof. Each of these terms represents