Originally Posted by
QuiltE
Not knowing the sizes of your blocks and sashings ... nor the strip you have laying next to it, it's hard to know how your suggested measurements compare!
So here's my suggestions .... quilt top, then a black border about 1-1/2 the width of the sashings, then a red flange, then another black border about 1-1/2 times the width of the first black border. Then bind in black.
Interesting suggestion...going for two black borders and the red flange rather than the red binding. It might look cleaner with the black binding.