How to Calculate Square Footage for Cleaning

Square footage is the foundation of most cleaning bids. Get it wrong and you either leave money on the table or bid too high and lose the job. Neither is good.

Here is how to measure without losing your mind.

The basic method

Measure the length and width of each room. Multiply them together. That is the square footage for that room. Add up all the rooms. That gives you the total.

For example, a bedroom that is 12 feet by 14 feet is 168 square feet. A living room that is 20 feet by 15 feet is 300 square feet. Add them together and you have 468 square feet.

Do not count everything

You clean the livable space. That means you do not count walls. You do not count closets unless you are cleaning inside them. You do not count hallways in some cases.

Only count the floor area that you will actually clean. If you are not vacuuming the closet floor, do not include it.

Multi-story buildings

If you are cleaning a multi-story house or building, measure each floor separately. Then add them up. A 2,000 square foot house with two floors is 1,000 square feet per floor, not 2,000. You clean both floors so the total is still 2,000.

Make sure you account for stairs. They take extra time even though the square footage is not huge. A flight of stairs is worth adding 100 to 200 square feet to your estimate for time purposes.

Bathrooms and kitchens

These rooms are small but they take a lot of time. A bathroom might only be 50 square feet but it takes almost as long to clean as a 150 square foot bedroom.

Some cleaners add a flat surcharge per bathroom. Others factor it into their square footage rate by using a higher rate for smaller spaces. Either way, do not underprice these rooms.

What the listing says is probably wrong

Real estate listings often list the total heated and cooled square footage. That might include the garage. It might include finished basement areas you are not cleaning. It might include closets you skip.

Always measure yourself or walk the space before you bid. It takes 10 minutes and it could save you from a bad bid.

Tools that help

A laser measure is cheap and fast. You point it at the wall and it tells you the distance. No more fumbling with a tape measure. Most cleaning companies that are serious about accurate bidding have one.

There are also apps that let you draw the floor plan on your phone and calculate square footage automatically. They are handy for bigger commercial spaces.

Square footage is a starting point

Remember that square footage alone does not determine price. A cluttered 1,500 square foot house takes longer to clean than a wide-open 1,800 square foot house. A building with mostly hard floors takes longer than one with mostly carpet if you are mopping.

Use square footage as your base. Then adjust based on the other factors. Condition. Number of rooms. Special areas. That is how you get to an accurate bid.