On my Etsy site, I do a lot of orders for custom sizes. Most of the time this isn't an issue but occasionally I have some issues with people who don't speak imperial, only metric. They have a hard time measuring in fractions. Not to restart a thread on metric vs imperial as I am a fan of metric but as with most of you here in the US, all my equipment is imperial. Here's a recent example. In their first conversation with me they asked price on a frame that was "H 13.4 ~ W 16.3 inch" I converted that to imperial and the closest size was 13 3/8" x 16 5/16" and asked them to confirm that. After some back and forth trying to explain imperial fractions, they came back with: "H : 13,6 ( 34cm) W: 16,5 (41,3 cm)" which caused more issues. as I explained to them 34cm is 13.385" but you also measured it at 13,6" 41.3cm is 16.26" but you also measured it at 16,5" Trying to measure two different ways gave them two different results. I am assuming that 13,6" is actually 13 6/10". Correct me if that is wrong. I have to assume that they don't teach fractions outside of the US. I'm not holding my breath for this sale. They will be getting back to me after they find an American (imperial) ruler somewhere in the vast Euro plains of Brooklyn. A google search tells me their first name has Lithuanian roots.