In order to buy the correct picture frame for that print or photo you have you'll need to know what size it is first. And to know what size it is, you'll have to measure it. If you're from Europe, schooled and grown up with centimetres and decimetres, you'll probably measure your artwork, and your frame, in decimetres, centimetres or millimetres. So when you go and look for picture .. frames and you find them labelled in Imperial sizes such as 8"x10" or 11"x14", chances are that you'll be a little confused. After all Australia is supposed to be a metric country, right, so what's going on? What's happened is that Australia converted, or metricated, to the metric system, which included units of length, in the 1970's. From its founding, and up to that time, the imperial system of measurements which included feet and inches had been the official one. Therefore, for picture framers in picture ..