Michigan Residential Builders License Practice Test

To estimate gable siding, which formula should be used?

1. 1/4 × base × height

2. 1/2 × base × height

3. base × height

4. base + height

The correct answer is: 1/2 × base × height

Gable siding is triangular in shape, typically found at the ends of a pitched roof. To calculate the area of a triangle, which is the shape of gable siding, the formula used is: Area = 1/2 × base × height. In this formula, the base refers to the width of the triangle (or gable), and the height refers to the vertical height from the base to the apex of the triangle. By multiplying the base by the height and then taking half of that result, you accurately find the area of the triangular section of the gable siding. Using this formula ensures that the estimate reflects the actual surface area that will need siding, allowing for proper material calculation and cost estimation. Understanding this calculation is crucial for builders when planning projects that involve gable siding, as it directly influences material requirements and overall project budgeting.