Can anyone tell me how long your strings should be when making a flemish string?

Its going to depend on your bow length, whether of not you are going to have a double loop string, or use a timberhitch at the end. Lots of factors to figure in...

If you make a double loop string, take the length of the string you need, and add 16" to that measurement. That will be the bundle length you need for that string. I don't use a string jig, either. Just two nails in the wall at the proper distance.

Not a lot of consistency in the industry on this. Rule of thumb is 3" shorter than the bow.  If using dacron, go 4" shorter because it will stretch.

Thanks scattershot.

I was looking for the string length to make a string not the finished string length.

I am not sure if this is what you are looking for, but when I make a flemish string using B50, I purposely build it 3/4 to 1 inch shorter than the formula I use says, because of the amount of stretch.

(With a longer string-say 64" actual length-I use 1 inch less.  For a shorter string-say 54" actual length-I use 3/4" less).  

For me, if built shorter, I don't have to twist so much when it has finally settled in and is done stretching.

RonP