Use this tool to quickly calculate the length of metal roofing you need for your project.

## How to Use the Metal Roof Length Calculator

To use this calculator, follow these steps:

- Enter the length of the roof in feet.
- Enter the width of the roof in feet.
- Specify the roof pitch as the rise over the run (e.g., 4:12).
- Enter the overhang in feet that is present on each side of the roof.
- Select the type of roof: Gable or Hip.
- Press the “Calculate” button to get the result in total square feet.

## How it Calculates

The calculator uses the following formula to determine the roof area:

- It first adjusts the length and width by adding the overhang twice (for both sides).
- It then calculates the roof area based on the pitch provided.
- For a gable roof, the formula is Length * Width * (1 + (Pitch/12)^2)^0.5.
- For a hip roof, a more conservative multiplier is used to account for the additional surface area.

## Limitations

This calculator assumes:

- Uniform roof pitch.
- Standard roof shapes without complex geometric variations.
- Does not account for material overlaps or wastage.

## Use Cases for This Calculator

### Calculate metal roof length for a rectangular building

Enter the width and height of the rectangular building to determine the length of metal roof required. First, input the width and height into the calculator to get the accurate measurements for the roof length.

### Determine metal roof length for a square building

If you have a square building, you can quickly calculate the metal roof length by providing the side length. Simply enter the side length of the square building into the calculator to obtain the necessary roof length measurement.

### Estimate metal roof length for L-shaped structures

For L-shaped buildings, input the dimensions of each section to calculate the total metal roof length needed. Segment the L-shaped structure into appropriate sections, and enter the measurements for accurate calculations.

### Compute metal roof length for a triangular roof

To determine the metal roof length for a triangular roof, input the base and height dimensions into the calculator. Ensure to measure the base and height accurately for precise results when calculating the roof length.

### Calculate metal roof length for a sloped roof

When dealing with a sloped roof, provide the pitch and width to estimate the metal roof length required. Input the pitch and width measurements into the calculator, considering the slope angle for accurate calculations.

### Estimate metal roof length for a gable roof

If you have a gable roof, you can determine the metal roof length by entering the width and pitch values into the calculator. Ensure to measure the width and pitch correctly to get the precise roof length measurement.

### Determine metal roof length for a hip roof

For a hip roof structure, input the dimensions of each section into the calculator to calculate the total metal roof length. Provide accurate measurements for each section of the hip roof to obtain the correct roof length calculation.

### Calculate metal roof length for a gambrel roof

When dealing with a gambrel roof, input the dimensions of the upper and lower slopes to estimate the metal roof length required. Ensure to measure both the upper and lower slopes accurately for precise calculations.

### Estimate metal roof length for a shed roof

Input the span and rise of the shed roof into the calculator to compute the metal roof length. Make sure to measure the span and rise correctly to get an accurate estimation of the roof length needed.

### Compute custom metal roof length for irregular structures

For irregular structures, input the measurements of different sections into the calculator to determine the custom metal roof length required. Break down the irregular structure into manageable parts and provide accurate measurements for each section for precise calculations.