Is there only one standard sized window and window position on a #10 Window Envelope?

No. There is a common standard, but both the window size and its position on a #10 envelope can be customized to match your artwork and mailing needs.

• The typical single window measures about 1 1/8 x 4 1/2 inches, set roughly 7/8 inch from the left and 1/2 inch from the bottom.
• Window dimensions can be enlarged or reduced for your address block or logo.
• The window can be repositioned higher, lower, or to a different area of the face.
• Double-window layouts are also possible for return and recipient addresses.