Estimate Roof Size

Metal Roofing Calculator

How do I figure out how much metal roofing I need?

Divide the length of your roof by the width of the metal. In our example we will use 24-inch standing seam roofing, so we will divide 360 inches by 24, which equals 15. This is the number of metal panels needed for one side of the roof.

How do you measure a roof for metal roofing?

Here’s our step-by-step guide for measuring the total roof area for installation:
  1. Step 1: Start by sketching out a top-down view of your home’s roof. …
  2. Step 2: Measure the length of your roof. …
  3. Step 3: Next, figure out the width of the metal that you’re installing. …
  4. Step 4: Repeat Step 3 for the other side of the roof

How much overhang should a metal roof have?

A typical metal roof overhang may be 2 to 4 inches, or even less. Some slight overhang is recommended, in conjunction with a drip edge flashing, to prevent water from getting under the roofing and onto underlying wood.
Install Metal Panels
Align the first metal roofing panel so that it overlaps the edging by 1/2 to 3/4 of an inch and is square to the roof line. Be sure the larger edge is laid so that the small edge of the next panel will overlap it.

Metal Roof Cost Per Square Foot

For many homeowners who are looking to install a metal roof on their house, cost is a huge factor.

As of 2022, the average price to install metal roofing is $5.97 to $9.85 per square foot.

Once you start researching various metal roof options, you will notice that there is a wide price range, depending on the type of metal and roofing system you want to install.


Lets take a closer look at how much you will spend on each popular metal roofing system:

Roofing TypeCost per sq. ft.Cost per square (100 Sq. Ft)Cost per sq.ft. installedInstall a 2,000 sq.ft. roof
Corrugated metal panels$1.75-2.5$175-250$4.25 – 6$8,500 – 12,000
Interlocking steel shingles$3.5 – $5$350- $500$8.75-11.5$17,500 – 23,000
Aluminum Shingles$4-6$400-600$9.5-13$19,000 – 26,000
Stone coated steel shingles$4.75 – 6.50$475-650$10 – 14$20,000 – 28,000
Steel standing seam$2 – 3.5$200-350$7.5 – 13$15,000 – 26,000
Aluminum standing seam$4-5.5$400-550$9.75 – 15$19,500 – 30,000
Zinc metal panels$8 – 11$800-1,100$15-20$30,000 – 40,000
Copper metal panels$10-13$1,000 – 1,300$17-22$34,000 – 44,000

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