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`TC = f("Roof Area","Shingle Pricing") `

Enter a value for all fields

The **Shingle Bundles for a Roof and Cost Estimate** calculator computes the estimated number of bundles of shingles to cover a basic gable roof based on the area of a roof based on the dimensions (length, span, pitch and overhang) and the unit price of a bundle of shingles.

**INSTRUCTIONS:** Choose units and enter the following;

- (
**L**) Ridge Length of Roof - (
**S**) Span of Roof - (
**P**) Pitch of Roof - (
**oH**) Overhang of Roof - (
**uP**) Unit Price of a Bundle of Shingles (see Shingle Pricing below) - (
**BS**) Bundle Size (33.33 ft^{2}default)

**Cost of Roof Shingles (TC):** The calculator returns the number of bundles and their cost in U.S. dollars. However, this can be automatically converted into other currency units via the pull-down menu.

**NOTE**: the above is just about the shingles and does not include the following:

- Labor
- Underlayment
- Ridge Cap
- Starter Strip Shingles or Starter Roll for Eaves and Rake
- Roofing Nails

One should always use the local pricing of materials available. However, for convenience, a periodic survey of materials is made. The price points for 33.33 ft² bundles are as follows:

- Shingle price survey date: 10/27/22
- Shingle price survey source: Home Depot
- Cost of economy shingles: $37.0 USD
- Cost of low cost shingles: $37.0 USD
- Cost of mid-range shingles: $39.0 USD
- Cost of high-grade shingles: $40.0 USD
- Cost of premium shingles: $40.0 USD

The pricing data is gathered periodically from nationally advertised prices on the websites of DIY providers such as (Lowes and Home Depot). The data is saved in a vCalc data repository (table).

The roofing shingle cost equation provides an estimate of materials cost for shingles on a roof based on the roof's area and on the price of shingles. To calculate the area, the user enters the length and width dimensions of the area covered (see diagram) and the pitch. vCalc uses these dimensions to calculate the are covered.

**Note**: vCalc provides automatic conversions of the input lengths into numerous units. Any unit price must be for 33.33 ft^{2} of shingles which is a standard bundle.

This is only an estimate, and may vary based on the price of shingles that you purchase. Furthermore, it does not include the cost of ridge shingles, under cover (tar paper or felt), or other materials such as flashing, nails and glues.

- Gabled Roof
- Hip Roof
- Shed Roof
- Dormers

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