**Need help figuring out these numbers?
The square footage is the length times the width.
If your home office is 12 feet long and 9 feet wide, it's 108 sq. ft. (12 ft. x 9 ft.)
For the square footage of your entire home, you may want to do an online search of your address, ask your landlord, or check your property records.
Still not sure? Just estimate the size of your house and home office. Approximate numbers are OK.