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`"Metal Roof" = "Metal for a Roof"`

Enter a value for all fields

The **Metal for a Roof** calculator estimates the materials needed for a metal roof for a simple gabled roof based on the roof dimensions.

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

- (
**L**) Ridge Length - (
**S**) Roof Span - (
**P**) Roof Pitch - (
**oH**) Overhang - (
**R**) Rake of Roof Overhang - (
**PD**) PANELS or DETAILS

**Metal for a Roof (RM):** The calculator returns the number and length of panels. If "DETAILS" are chosen, the calculator returns the following:

**Ridge Cap**: length of the ridge cap.**Gable Trim**: total length of gable trim, equals four times a gable length**Metal Panels**: number and length of metal panels for the roof.**Metal Screws**: number of screws needed to attach panels to roof.**Snow Guard**: total length of snow guard, equals twice the ridge length.**Angle Trim**: total length of angle trim (used as facia).**Purlins**: number and length of rows of purlins for the roof**Area**: area of the roof in square feet.

The Metal for a Roof calculator is meant to help with material estimates for a metal roof. In all cases, confirm your estimates with a professional estimate and adhering to local building codes.

The calculator uses the ridge length, pitch and roof span to compute the roof area. The most common width of both G-Rib and R-Rib metal panels is 36". This is the default in this calculator. Note: under the ridge cap, you will need **foam closure** which keeps rain from being driven up under the ridge cap. The length of the foam closure that you'll need is four times the ridge length, two for either side of the ridge, and two for the bottoms above the angle trim.

A spacing of twenty four inches (24") between rows of purlins is used to compute the number and length of purlins. To compute the length and number of purlins using a different spacing, use the Purlins for a Roof Calculator (CLICK HERE).

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- Total Building Materials Calculator
- Roofing Calculators
- Metal for a Roof - Calculates the number of metal panels for a roof.
- Area of a Roof - Computes the area of a roof based on the pitch and the dimensions of the area covered by the roof. It also returns the number of 4x8 sheets to cover the roof, the number of standard bundles of shingles to cover, and the number of roofing nails for both normal and high wind environments.
- Pitch of a Roof - Computes angle of incline in the roof in both degrees and rise over 12" run (e.g. 26.6
^{o}: 6/12) based on the length of the rise and run. - Number of Trusses Needed for a Roof - number of trusses needed based on the roof width and the truss spacing.
- 4x8s needed for a roof - Calculates the number of 4x8 sheets needed to cover a roof.
- Shingles needed for a roof - Calculates the number of standard bundles (33.3 ft
^{2}) of shingles for a roof. - Roofing nails needed for a roof - Calculates the number of roofing nails needed for a roof in normal and high wind conditions.
- Number and Length of Metal Roof Panels - Computes the length and number of metal panels and trim pieces for a metal roof.
- Screws for a Metal Roof - Computes the number of screws needed for a metal roof.
- Number and Length of Purlins for a Roof - Computes the number of purlins for a roof based on dimensions and spacing.
- Number and Length of Rafters - Computes the number and length of rafter boards based on roof dimensions and spacing.
- Number and Length of Rafter and Collar ties - Computes the number and length of rafter ties and collar ties based on roof dimensions and spacing.

- Number and Length of wall top and bottom wall plates
- Number of Studs for a Room
- Number of Studs in a Wall
- Room Interior Area (wall and ceiling)
- Cubic Feet in a Room (volume)
- Number of 4x8 or 4x12 Sheets for a Room

- Number and Length of Floor Joists
- Number of Joist Hangers
- Compute the Cost of Floor Joists
- Compute iJoists for larger floors
- Compute the Number of 4x8 Sheets to cover the Deck or Floor
- Compute the number of Decking Boards to cover the deck or floor

Roofing Geometry Calculators