Introduction
A metal roof typically costs two to three times an asphalt shingle roof — and lasts two to three times as long. The wide spread in quotes comes from a handful of cost drivers: panel type, roof complexity, labor rates, and whether the old roof comes off first. Understanding each driver is what turns a confusing set of bids into an apples-to-apples comparison.
The Metal Roof Calculator estimates your panel quantities and roof area, which are the inputs every cost estimate starts from. This guide turns those quantities into dollars: typical installed costs per square by panel type, the material and labor breakdown, tear-off costs, and a full worked example.
Installed Cost per Square by Panel Type
Roofing costs are usually quoted per square (100 ft² / 9.29 m²), installed — materials plus labor. Typical US ranges:
| Panel type | Installed cost per square | Installed cost per ft² | Typical lifespan |
|---|---|---|---|
| Corrugated (exposed fastener) | $600–$1,100 | $6–$11 | 20–35 years |
| R-panel / PBR (exposed fastener) | $700–$1,300 | $7–$13 | 25–40 years |
| Standing seam (concealed fastener) | $1,100–$2,000 | $11–$20 | 40–70 years |
| Metal shingles / tiles | $1,500–$2,800 | $15–$28 | 40–70 years |
These are broad national ranges — labor markets, roof complexity, and material choices move real quotes substantially. Standing seam sits at the top because the panels are thicker-gauge, the clips are concealed, and the installation is slower and more skilled. Corrugated and R-panel are the budget workhorses of agricultural and utility buildings. Metal shingles mimic slate or tile at a fraction of the weight, with installation labor to match.
For how each profile affects the panel math itself, see the material guide.
What the Materials Actually Cost
Installed cost splits roughly into materials (40–55%) and labor (45–60%) for standing seam, and closer to 50/50 for exposed-fastener profiles. The material side breaks down further:
Panels
Panels are usually priced per linear foot, and the price climbs with heavier gauge and premium coatings. As a rough guide, expect panel-only material costs of about $3–$5 per ft² ($0.28–$0.46 per m² scaled) for 29-gauge corrugated, $4–$6 per ft² for 26-gauge R-panel, and $5–$8 per ft² for 24/26-gauge standing seam — before trim, underlayment, or fasteners. Kynar (PVDF) paint finishes add roughly 10–20% over standard polyester paint.
Trim, flashing, and closures
Ridge cap, eave drip, rake trim, valley flashing, gable trim, pipe boots, and foam closures typically add 10–15% on top of the panel material cost. Complex roofs with many valleys, dormers, and penetrations land at the high end. This is the line item most often missing from DIY budgets — see the estimating guide for a trim take-off method.
Underlayment
Synthetic underlayment runs roughly $0.50–$1.00 per ft² installed in material terms; high-temperature peel-and-stick (often required under metal in hot climates or at eaves in snow country) runs $1.00–$2.00 per ft². A 19.2-square roof (1,920 ft²) needs about 2 rolls of synthetic at roughly $150–$250 per roll.
Fasteners and clips
Exposed-fastener screws with EPDM washers run a few hundred dollars for an average house — roughly $100–$300 per square in material depending on screw density. Standing seam clips add roughly $0.50–$1.00 per linear foot of panel. Small per unit, but a 1,500-linear-foot order adds up.
Labor Costs
Labor is where panel type matters most. Typical labor-only ranges:
- Exposed-fastener profiles (corrugated, R-panel): $3–$5 per ft² ($300–$500 per square). Fast to install; a competent crew covers large simple roofs quickly.
- Standing seam: $5–$8 per ft² ($500–$800 per square). Slower: clips, seaming, and careful layout, especially on long panels.
- Metal shingles: $6–$10 per ft² ($600–$1,000 per square). Piece-by-piece installation similar in pace to premium shingles.
Roof complexity multiplies labor: steep pitches (above 8/12), two-story heights, cut-up plans with hips and valleys, and long panels (over 20 ft / 6 m) that need bigger crews can push labor 25–50% above the base rates. A simple single-story gable is the cheapest roof to install per square; a complex multi-gable two-story is the most expensive.
Tear-Off and Deck Work
Removing the old roof typically costs $1–$3 per ft² ($100–$300 per square) depending on the number of shingle layers and disposal costs. A second layer of shingles, or a tear-off that reveals rotted decking, pushes toward the high end. Deck repair or replacement (plywood/OSB) adds roughly $2–$4 per ft² for the affected areas.
Some jurisdictions and manufacturers allow metal over one layer of existing shingles, which can save the tear-off cost — but check the code compliance guide first, because local rules and warranty terms vary, and the old roof must be flat and sound.
Worked Example: Pricing a 19.2-Square Standing Seam Roof
Take the worked example from the complete guide: a two-slope gable roof, 40 ft eaves × 24 ft slopes = 1,920 ft² (178.5 m²) = 19.2 squares, standing seam, mid-range assumptions.
| Cost component | Rate | Amount |
|---|---|---|
| Panels (26 ga, Kynar finish) | $6.00/ft² × 1,920 ft² | $11,520 |
| Trim, flashing, closures (12% of panels) | — | $1,382 |
| Underlayment (synthetic, 2 rolls + ridge) | — | $550 |
| Clips and fasteners | — | $900 |
| Materials subtotal | $14,352 | |
| Labor (standing seam, simple gable) | $5.00/ft² × 1,920 ft² | $9,600 |
| Tear-off (one shingle layer) | $1.50/ft² × 1,920 ft² | $2,880 |
| Project total | $26,832 |
That works out to roughly $1,398 per square ($13.98 per ft²) — squarely inside the standing seam range from the table above. Swap the panels for 29-gauge corrugated at $4/ft² material and $3.50/ft² labor on the same roof, and the total drops to roughly $17,500 — which is exactly why panel choice is the biggest single cost lever.
Cross-check the per-square figure against at least two local quotes before committing. If a bid lands far outside these ranges in either direction, ask what it includes — the cheapest bid often omits tear-off, upgraded underlayment, or proper trim.
Keeping Costs Down Without Cutting Corners
- Choose the right profile, not the cheapest one. Exposed-fastener panels cost less up front but need screw maintenance; standing seam costs more but is largely maintenance-free. Match the roof to the building’s intended life.
- Keep the design simple. Every valley, dormer, and hip adds cutting waste and labor. On new construction, a simple gable is the cheapest roof shape per square.
- Get the quantities right the first time. Custom-cut panels have multi-week lead times; a short order stalls the crew while you pay for it. The common mistakes guide lists the errors that cause expensive re-orders.
- Time the project. Roofers’ schedules are thinnest in late fall and winter in many markets, which can mean better pricing — balanced against weather risk.
- Don’t skip the underlayment upgrade. High-temperature or peel-and-stick underlayment is a small fraction of project cost and the last line of defense if a panel is ever damaged.
Related Guides
- Metal Roof Calculator — Complete Guide — the full estimating walkthrough behind these costs.
- Metal Roof Material Guide — how profile, gauge, and coating choices move the price.
- DIY vs Pro — what doing it yourself actually saves, and what it risks.
- Step-by-Step Estimating Guide — measure accurately so you buy accurately.
- Metal Roof Calculator FAQ — quick answers on costs and quantities.
Get Your Estimate
Every cost estimate starts with quantities: panel count, linear feet, and roof area. Run your dimensions through the Metal Roof Calculator, apply the per-square rates above as a sanity check, then get two or three local quotes to pin down your market’s real numbers.
Open the Metal Roof Calculator
Disclaimer: Cost figures are broad planning ranges for the US market and vary significantly by region, roof complexity, and material choices. Verify all pricing with local suppliers and contractors, consult a licensed roofer or contractor for installation decisions, and check local building code requirements before starting work.
