Tartan, I think the OP means there are 5 pieced border strips on all four sides.
If the OP could post a link to a picture of the pattern or quilt that would be a big help. Is there just one big cornerstone in each corner or is it 5 cornerstones for each strip? You may have to sew them on one at a time if the latter.
The only way I know how to sew on multiple strip sets of borders in one fell swoop is to miter the corners so if that is the case then each cornerstone would actually be a triangle that when joined in the miter form a square.
I think it would be easier to sew them on one at a time.
Last edited by feline fanatic; 10-04-2016 at 04:11 AM.