What is the size of the flap on a #9 Remittance Envelope?

Updated 8 months ago by Alexis Underwood

The size of the flap on a #9 Remittance is 3 5/8" x 8 7/8" , or 3.625" x 8.875" . The back flap is 1/4" shorter than the front of the envelope,

Attached are templates of both the front and the back of a 9 Remittance.