Parts of a Rafter Diagram

Look at the diagram of the rafter. What is the name of the cut at the very top end of the rafter?

• Ridge Cut

• Birdsmouth Cut

• Plumb Cut

• Seat Cut

Look at the diagram of the rafter. What is the name of the cut at the bottom end of the rafter, closest to the wall plate timber?

• Tail Cut

• Birdsmouth Cut

• Plumb Cut

• Seat Cut

Look at the diagram of the rafter. What is the name of the horizontal cut that allows the rafter to sit on the wall plate timber?

• Seat Cut

• Birdsmouth Notch

• Plumb Cut

• Heel Cut

Look at the diagram of the rafter. What is the name of the cut just before the tail cut, where the rafter meets the wall plate timber?

• Heal Cut

• Birdsmouth Cut

• Plumb Cut

• Seat Cut

Look at the diagram of the rafter. What is the name of the main sloping timber shown in the diagram?

• Rafter

• Purlin

• Joist

• Stud

What is the name of the horizontal timber that sits on top of the supporting wall?

• Wall Plate Timber

• Sill Timber

• Ridge Board

• Joist

What is the name of the structure that supports the wall plate timber?

• Supporting Wall

• Ridge Board

• Joist

• Purlin