The oddness of the English language

I was thinking this afternoon. How do you describe how far away something is from you if it's more than a few feet but less than 100 feet? We have our base 10 system that we generally follow. I often think of things in 10s, 100s, 1000s, and so on. This doesn't work in some cases though--at least not for me. Something can be a few (single) feet away or hunderds or thousands of feet away, but I'd never describe something as being tens of feet away. I would say it's dozens of feet away, though. Is it just me, or is that weird?