How to Calculate Square Feet for Cleaning Contracts


When you hire an individual or a group to clean your home or office, you most likely will need to know the square footage involved. This is because many professional cleaners and janitorial services base their rates on the amount of space to be cleaned. You can calculate square footage for a cleaning contract by following a few simple steps.

Things You'll Need

  • Tape measure
  • Calculator (optional)
  • Determine which rooms need to be cleaned. You may want a section of a building cleaned rather than the whole thing.

  • Measure the length and width of each room.

  • Convert the length and width into feet by dividing inches by 12. For instance, if a room is 96 inches long 90 inches wide, perform the following equations:
    96 / 12 = 8
    90 / 12 = 7.5

  • Multiply the length and width (in feet) of each room to find the individual area of every room. The room in this example would be 60 square feet (8 x 7.5 = 60).

  • Add the areas of all the individual rooms to find the total square footage to be cleaned.

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