Imagine you are a businessman moving your office from the US to somewhere in Europe or Asia. You pack up all of your files and ship them across the sea. When you arrive in your new office, you supply it with local furniture, including file cabinets.

When you go to unpack the files from your old office, you just might be surprised at what happens. They will not fit very well in the new file cabinets. This is because file cabinets in Europe and Asia are manufactured with slight different specs than those in the USA. They are built to hold a different size of paper.

In the United States, the standard paper size is known as letter size. This is 8.5 inches by 11 inches. However, in many other parts of the world, the standard paper size is called A4. A4 paper is slightly thinner and longer than letter size paper. The exact dimensions of A4 paper are 8.27 inches by 11.69 inches.

Due to this difference in standard paper size, the file cabinets in other parts of the world will have a little trouble fitting letter-sized paper. They are designed to hold slightly longer, thinner hanging files, so letter-sized paper will not fit very well. But this is not really much of a problem, because offices can simply reprint their documents. If you explore your printer or copier’s capabilities, you will quickly see that most modern machines can work with both letter-sized and A4-sized paper. Thus, the conversion is not too difficult.