Metal Roofing Calculator

Calculate metal roofing panels, screws, ridge cap, and cost. Choose from 5 panel types with roof pitch, gauge, and material pricing.

🏠 Metal Roofing Calculator

Panel Type

Roof Pitch

Roof Length (eave to ridge) (ft)

Roof Width (ft)

Gauge

Waste Factor (%)

Cost per sq ft ($)

ROOF AREA

Footprint600.00 sq ft

Actual (with pitch)632.40 sq ft

With Waste695.64 sq ft

Roofing Squares7.0 squares

PANELS & FASTENERS

Panels Needed15 panels

Screws210.00 pcs

Ridge Cap20.00 lin ft

COST

Material Cost$6,956.40

💡 Metal Roofing Material Estimation

Metal roofing is the fastest-growing segment of the US residential roofing market, now installed on 17% of new homes (up from 5% in 2000). Metal roofs last 40–70 years — 2–3× longer than asphalt shingles — and offer superior wind resistance, fire resistance, and energy efficiency.

The calculator above supports 5 panel types with auto-filled pricing, roof pitch multiplier, gauge selection, and detailed output including panels, screws, ridge cap, and total material cost.

Compare materials with our roofing calculator. Find your pitch with our roof pitch calculator. For sheathing, see our plywood sheathing calculator.

Metal Roofing Panel Types

Panel Type	Coverage Width	Fastening	Screws/sq	Cost/sq ft	Lifespan
Standing Seam	12"–18"	Concealed clips	~30	$8–$14	50–70 yrs
Corrugated	26"	Exposed screws	~80	$3–$6	40–60 yrs
Ribbed / R-Panel	36"	Exposed screws	~80	$4–$7	40–60 yrs
Metal Shingle	48" (interlocking)	Hidden nails	~60	$7–$12	50–70 yrs
5V Crimp	24"	Exposed screws	~75	$3.50–$6	40–60 yrs

Most popular: Standing seam dominates the premium residential market (concealed fasteners, clean lines). Corrugated and R-panel are most cost-effective for agricultural, commercial, and budget-conscious residential projects.

Metal Gauge Guide

Gauge measures metal thickness — lower gauge = thicker metal. Thicker gauge costs more but resists dents, wind, and hail better.

Gauge	Thickness	Best For	Cost Premium
29 ga	0.014"	Budget sheds, carports	Least expensive
26 ga	0.019"	Standard residential	Baseline
24 ga	0.024"	Premium residential, high-wind	+15–25%
22 ga	0.030"	Commercial, industrial	+30–50%

Recommendation: 26 gauge is the US residential standard. Use 24 gauge in high-wind zones (coastal, tornado-prone) or areas with frequent hail. Never use 29 gauge for a primary residence.

Step-by-Step Metal Roofing Estimation

Step 1: Calculate Roof Area

Measure the building footprint and apply the pitch multiplier. Metal roofing requires minimum 3/12 pitch for most panel types (standing seam can go as low as ½/12).

Example: 30 × 20 ft footprint at 4/12 pitch = 600 × 1.054 = 632 sq ft. Add 10% waste = 695 sq ft.

Step 2: Calculate Panels

Divide roof width by panel coverage width. Panels run vertically from eave to ridge — they're cut to match your roof length.

Example: 20 ft wide ÷ 16" standing seam (1.33 ft) = 15 panels, each cut to 30 ft length.

Step 3: Calculate Fasteners and Trim

Screws per square (100 sq ft): standing seam ~30, exposed-fastener ~75–80. Ridge cap: 1 linear foot per foot of ridge. Add eave trim, gable trim, and closures.

Metal vs. Asphalt Shingles

Feature	Metal Roofing	Asphalt Shingles
Lifespan	40–70 years	15–25 years
Installed cost	$8–$14/sq ft	$3–$7/sq ft
Wind rating	140–180 mph	60–130 mph
Fire rating	Class A (non-combustible)	Class A–C
Energy savings	25–40% cooling	Minimal
Weight	1–1.5 lbs/sq ft	2–4 lbs/sq ft
Maintenance	Very low	Moderate

Lifetime cost: Metal costs 2–3× more upfront but lasts 2–3× longer. Over 50 years, metal is typically cheaper than two asphalt roof replacements.

2025 US Metal Roofing Cost Guide

Type	Material/sq ft	Installed/sq ft	1,500 sq ft Roof
Corrugated	$3–$5	$5–$8	$7,500–$12,000
5V Crimp	$3.50–$5	$6–$9	$9,000–$13,500
R-Panel	$4–$6	$6–$10	$9,000–$15,000
Metal Shingle	$7–$10	$10–$15	$15,000–$22,500
Standing Seam	$8–$12	$12–$18	$18,000–$27,000

Additional costs: Old roof tear-off: $1–$3/sq ft. Underlayment: $0.50–$1.50/sq ft. Trim/flashing: 10–15% of panel cost. Permits: $150–$500.

30 × 20 ft roof at 4/12 pitch: 632 sq ft × 1.10 waste = 695 sq ft. Standing seam: 15 panels, 210 screws, 20 ft ridge cap. At $10/sq ft = $6,950.