#10 envelopes are created to allow 8 1/2 x 11 sized paper to be folded into three parts, and are highly ideal for office and personal use.  These envelopes are mainly used for checks, invoices, and other types of business letters. Monthly bills, statements, and utility bills are usually mailed in #10 envelopes. #10 envelopes are long and are rectangular in shape.  The U.S. standard size of the envelope is 4.125 x 9.5, which is 241.3 x 104.78 millimeters in metric measurements and come in a variety of paper weights.  The basic thickness (paper weight) is 24#, which is on the lower quality end, but other weights include 60#, 70#, and 80# stocks.  They come in a variety of colors, and have moisten to seal as well as peel and press sealer tabs which enable the envelope to seal easily by hand without moisture. A 70# envelope is considered high quality and can be purchased at a local paper supply store.  However, 24# is usually the standard for direct mail bulk mail pieces.If your correspondence contains personal information, security tinted options are available. A variety of envelopes are available with moisten to seal, and peel and press which make makes individual letter mailing easier.  Regular #10 Envelopes have a commercial flap and is a great option for machine inserting and direct mail.

• Converted Envelopes & Envelope Converters
  Envelope converting is the process of printing and converting envelopes from larger sheets or rolls of paper that are die cut, fold and glued to the product’s final size.  Envelope converting is usually done on orders of 2500 pieces or more, but can be cost effective when compared to buying envelopes and attempting to print heavy coverage on both sides.  Envelope converters can create any envelope size before or after it has been printed, however, there must be a reasonable quantity to make the investment ideal.  Of course, depending on its use, custom envelopes are usually printed before they are converted.
• #10 Square flap envelopes
  These envelopes have a unique square flap at the backside. They are highly suitable for various communications, from business correspondence to dinner party invitations. These envelopes are available in a variety of colors, including foil lined envelopes. The stylish square back envelopes are very attractive when the square flap is printed in color or is printed with a company or organization’s name is on the flap.
• Full face window envelopes
  Full face #10 window envelopes consist of a completely transparent window centered on the face, making nearly ninety percent of the face side of the content visible.  They are ideal for a vast array of mailings, including letters, catalogs, invoices, statements, annual reports, and sales literature.  These envelopes are available in nine different colors, and are available with moisten to seal, as well as peel and press sealers.
• #10 Open Window envelopes
  Save the time and expense of separately addressing envelopes by using these envelopes, by positioning the address to show through the window. The #10 open window are used frequently in direct mail.This can also reduce cost of direct mail and expedite the fulfillment process.
  These envelopes are available in a host of colors and paper weights and can transform a direct mail marketing piece.