Is there a simple formula for determining the length of a chain when layed out flat?
Obviously the chain is longer layed out off the bar and pulled parallel than when on the bar. I ask because I have aquired a few chains recently and two of them seem to be 1" short for my 20" bar on my 036. Not a huge deal as I got them all for free but I was wondering if there is actually a 19" chain because these are longer than my 18's but shorter than my 20" chains and I had not ever heard of a 19" . I also have a few others in the mix of free stuff and all of them are good to near new once cleaned up and sharpened so I was trying to get a method of determining their length to possibly give them away or barter with someone that has the appropriate bar and saw.
Thanks for any help.
Bob
Obviously the chain is longer layed out off the bar and pulled parallel than when on the bar. I ask because I have aquired a few chains recently and two of them seem to be 1" short for my 20" bar on my 036. Not a huge deal as I got them all for free but I was wondering if there is actually a 19" chain because these are longer than my 18's but shorter than my 20" chains and I had not ever heard of a 19" . I also have a few others in the mix of free stuff and all of them are good to near new once cleaned up and sharpened so I was trying to get a method of determining their length to possibly give them away or barter with someone that has the appropriate bar and saw.
Thanks for any help.
Bob