Which types of wooden frames are possible for pitched roofs?

The correct choice emphasizes the types of wooden frames that are suitable for pitched roofs, specifically highlighting trussed roofs and cut roofs.

Trussed roofs consist of triangular structures that provide stability and support, making them ideal for pitching as they efficiently distribute weight and allow for greater spans without the need for excessive supports. This design enables the roof to handle various loads while maintaining the intended sloped angle, which is essential for effective drainage and preventing water pooling.

Cut roofs, on the other hand, are constructed with individual rafters that are cut to fit the required pitch and geometry of the roof. This option provides flexibility in design, allowing for specific angles and shapes that can adapt to the architectural needs of a building. Cut roofs can also be constructed in various styles, further enhancing their application in pitched roofing scenarios.

In contrast, the other options present combinations of roof types that do not all possess the characteristics suitable for pitched roofs. For instance, flat roofs lack the angle necessary for pitched drainage and may use different framing techniques. Thus, trussed roofs and cut roofs are the most appropriate choices when considering wooden frames for pitched roof structures.