I use 2 OL175 labels for a white 8.5x6.75x2 corrugated box that holds 4-5ounce hot sauce bottles. the front label is cut out along lines with xacto knife to provide a window for the sauce bottles to show through. the back label is solid.
very simple. pre-measured to fit on paper to create a label template. the outside dimensions are cut to box size and once front is applied, xacto knife is used to remove window opening