A well-insulated home is the key to keeping your energy bills in check. Use this worksheet to determine the square footage of insulation you’ll need for your home. Simply print this worksheet and collect the dimensions of walls, ceilings, doors and windows, then input them in the online calculator.

If your windows and doors are different heights and widths, you can make the math easier by averaging the window and door dimensions. For example, one 1 x 1 window and one 2 x 1 window would be roughly two 1.50 x 1 windows.

• Wall dimensions

  • Wall 1 Length:ft.in.
  • Wall 1 Height:ft.in.
  • Wall 2 Length:ft.in.
  • Wall 2 Height:ft.in.
  • Wall 3 Length:ft.in.
  • Wall 3 Height:ft.in.
  • Wall 4 Length:ft.in.
  • Wall 4 Height:ft.in.

• Ceiling dimensions

  • Length:ft.in.
  • Width:ft.in.

• Windows

  • Number of windows:
  • Length:ft.in.
  • Height:ft.in.

• Doors

  • Number of doors:
  • Length:ft.in.
  • Height:ft.in.

• Once you’re done

  After you’ve collected all of the information you need, input it into our online calculator to estimate how much insulation you’ll need. Then visit The Home Depot to choose your insulation from brand names you can count on, such as Owens Corning, CertainTeed and Dow.