Soffit Calculator

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1312 ft panels

Panels run across the overhang and are cut from full lengths. Includes 10% extra. Coverage width varies by product, so check the label.

16 in overhang, looking upShowing 70 of 105 stripsOne 12 ft panel cuts 9 strips
Soffit area187 sq ft
Strips needed105
Strips per panel9
J-channel280 ft

Count soffit panels for your eaves and overhang, plus the J-channel to hold them.

How it works

Strips are length รท panel width. Each panel is cut into as many strips as the overhang allows.

Before you order

  • Use vented panels where your attic needs intake.
  • Leave expansion room inside channels on vinyl.
  • Prime and paint wood soffit before installing.

Common questions

Do I need J-channel for soffit?

Most panel systems use J-channel or a similar trim at the wall and fascia.

Which way do soffit panels run?

Usually across the overhang, with the seams running from wall to fascia.