Buildxact can easily measure the area of a raked wall, all you need to do is use the vertical M2 tool as per the video below, but when entering the height use the **average height** of the wall.

Using the image below, Average height = (H1 + H2) / 2

This method gives the same result as the manual way of calculating a raked wall. Please see below for both the manual and Buildxact formula to calculate the raked wall.

**Manual way of doing raked wall area**

Area of Shape1 = L* H1

Area of Shape2= (H2-H1)*.5*L

Shape 1 + Shape 2

= L * H1 + (H2-H1)*.5*L

= L(H1+.5(H2-H1))

= L(H1+.5H2-.5H1)

= L(.5H1+.5H2)

= .5L(H1+H2)

**Buildxact way**

= Length x Average height

= L*((H2+H1)/2)

= L*(.5*(H2+H1))

= .5L(H2+H1)