Which term describes the plan showing the size and spacing of roof members including plate, ridge, rafter, post, and purlin?

Which term describes the plan showing the size and spacing of roof members including plate, ridge, rafter, post, and purlin?

• A. Roof plan
• B. Roof framing plan
• C. Column
• D. Beam

Answer: (B)

This item tests understanding of which drawing communicates how the roof is put together. The plan that shows the size and spacing of roof members—such as the plate at the top of the wall, the ridge, rafters, posts, and purlins—is the roof framing plan. It provides the exact dimensions, spacing, and arrangement needed to construct the roof framing and how those members connect. A roof plan, by contrast, outlines the roof’s surface, layout, slopes, ridges, and drainage features, not the structural member sizes. A column or a beam is a component, not a plan type, so they don’t describe the overall roof framing arrangement.

This item tests understanding of which drawing communicates how the roof is put together. The plan that shows the size and spacing of roof members—such as the plate at the top of the wall, the ridge, rafters, posts, and purlins—is the roof framing plan. It provides the exact dimensions, spacing, and arrangement needed to construct the roof framing and how those members connect. A roof plan, by contrast, outlines the roof’s surface, layout, slopes, ridges, and drainage features, not the structural member sizes. A column or a beam is a component, not a plan type, so they don’t describe the overall roof framing arrangement.