Metal Roofing Calculator

Enter your roof footprint and pitch to estimate metal panels, trim, ridge cap, fasteners, and closure strips — then compare total costs across standing seam, corrugated, and R-panel options.

Roof Pitch

Panel Type

Roof Length (ft)

Roof Width (ft)

Waste Factor (%)

Pricing (edit to match local rates)

Standing Seam Panel ($)

Corrugated Panel ($)

R-Panel ($)

Ridge Cap / 10ft ($)

Trim / 10ft ($)

Screws per lb ($)

Closure Strip ($)

Roof Preview

Hover for details • not to scale

Roof Area

1,299 sq ft

13.0 squares (incl. 10% waste)

Panels Needed

16" effective width

Trim + Ridge

179 LF

18 pcs (10ft each)

Screws

14 lbs

~1,039 screws + 132 closures

Purchase Option	Quantity	Est. Cost
Standing Seam	66 panels	$3,696.00
Corrugated	44 panels	$1,430.00
R-Panel / PBRBest value	33 panels	$1,419.00

Best value: R-Panel / PBR at $1,419.00Corrugated and R-Panel are the most affordable metal roofing options, best for agricultural buildings and shops. Standing seam costs more but uses concealed fasteners, eliminating screw-hole leaks and lasting 40-70 years with minimal maintenance — often the best choice for homes.

Panel length and orderingEach panel runs from eave to ridge: approximately 14.8 ft for your 4/12 pitch. Most suppliers cut panels to length — confirm maximum transport length (typically 40 ft) and whether your supplier requires a minimum order quantity.

This is a material estimate for a simple gable roof. Complex geometries, valleys, and penetrations (skylights, vents) will require additional panels and trim. Always verify measurements on-site and confirm panel lengths with your supplier.