sometimes a rough guess is better than the response i got one time when calling a LFS
(one of the crappy stores here in town, but i heard they had a gar, and no one else has all summer, so i called)
me: do you still have the gar for sale?
lfs: maybe, thats the long skinny one right? let me check .... yeah, we have one
me: ok, about how long is it?
lfs: oh, its big! its $25 (all gar in this chain are $25, from 2"-24" they are always $25)
me: yeah, but about how long? is it over or under 14"?
lfs: let me check ..... yeah it's really big! you'll have to come in and check it out
needless to say i didn't drive across the city to go to a crappy store and check it out ... i heard from someone who saw it that it was about 11"