Navajo Quilt, Part 2

Still thinking about borders for my unfinished Navajo quilt, I've pulled out the chart that was with the stack of cut squares. A red border was charted in, half the width of the squares themselves.

Since there seems to be plenty of red backing fabric, I went ahead and added the border, and I think it adds-it definitely confines and frames the whole thing. Next decision--a black border as well? I think I'll pick up some black yardage and audition it by laying the corner of the quilt top on the corner of the yardage, trying different border widths, and then we'll see.