#8-5/8 Envelope
Business envelopes, also known as commercial envelopes, are characteristically open side style with diagonal seams. #8-5/8 business envelopes measure 3-5/8" x 8-5/8" and are made from 24# white sulphite stock.
Business envelopes are used for standard mailing purposes such as:While historically the smaller sized envelopes were known as commercials and sizes 7 through 14 were called officials, the Envelope Supplies Shop uses the term business envelopes for all sizes.
