This image is 7 x 16, a non-standard ratio. To print this image with a 1/2 inch border, we will need to cut our 11x17 inch paper to 8x17 inches.
Note: we don't want to trim the print after printing: it can get sratched or damaged. It's easier and safer to trim the paper before printing.
Now let's configure a custom paper size of 8x17 inches:
Now let's make a 10x16 inch print on 11x17 inch paper:
We get a perfect 1/2 inch border all around. With Piezography Pro we have applied a slightly more neutral blended variable tone to suit to the image.
Here's another print with blended tones: 12x15 inches on 13x16 inch paper.
Below the print is a fragment of a grayscale image for reference.