An inch is an inch is an inch. Or, so you’d think. But when it comes to measuring the square footage of a property, it’s not quite that simple.
I doubt there exists a buyer in the entire world of real estate who hasn’t asked, at one time or another, what is the square footage of a particular property. The fact is, however, measuring the size of a home isn’t an exact science.
You can hire three different appraisers to measure the same house and they may come up with three different measurements. Because there are multiple ways to measure and different mechanisms used, the physical act of measuring can be done differently. Some appraisers will measure square footage with a good old measuring tape, albeit a large one. Others come equipped with those new state-of-the-art laser devices. I have been present when an appraiser will just eyeball a difficult-to-measure space or even do the wide-arm measurement. The point is, there aren’t any universally applied standards.
Read more: http://articles.businessinsider.com/2011-12-09/news/30497207_1_square-footage-appraisers-sellers-and-buyers#ixzz1g9HgNT2x