Presorted Standard Mail Size Guidelines   top


Minimum: 3-1/2 x 5 inches (89 x 127mm)
Maximum: 4-1/4 x 6 inches (108 x 152 mm)

Note: This only pertains to first class mail. In standard mail, a postcard is considered the same as a letter.


Minimum: 3-1/2 x 5 inches (89 x 127mm)
Maximum: 6-1/8 x 11-1/2 inches (154 x 292mm)

Note: Thickness cannot exceed 1/4 inch.


Any of the following dimesions exceed:

6-1/2 inches wide,
11-1/2 inches long
1/4 thick

Note: Flats are more expensive than Letters except when carrier routed.

Mailing Weights   top

Each piece of Presorted Standard mail must weigh the same as every other piece in a mailing.

If you color-code different regions of your mailing, you must make sure that each paper’s ten-weight (the weight of ten pieces) is exactly the same for all papers. Cardstock and paper vary in weight enormously. Different piece-weights within a presort standard mailing will probably result in the USPS disqualifying your mail.

Heavier-weight paper survives the postal service’s handling better than thinner-weight paper.We’ve found that 24 lb bond works best for flyers, anything less than 20 lb bond will probably not survive handling.

Mailing Glossary   top

Mailing Face
the face containing addresses and postal indicia
Address Location
On postcards and letters, place the address on the right side of the mailing face, not the left.
Staples and Bound Materials
A magazine, or other staple-bound materials must have the bound edge on the right, this is often referred to as the leading edge.
Return Addresses
should never appear lower than the destination address. Misplaced return addresses could result in the post office delivering your entire mailing back to you.
Bounce Backs (business reply mail, BRM, BRC)
Make sure the mailing face of your return piece is not visible from the outside of your mailing piece.

Automation   top

Automation Mail has many restrictions. If you wish to obtain an automation discount and your mail is not going to be carrier-routed, please call us to discuss the various requirements.

Endorsements   top

The postal service has several different endorsements which can be put on a mailing piece to request that any change in address for the addressee will be acknowledged.

The endorsements are extremely important. The wording can mean the difference between paying a minimal amount for the information or paying signifigantly more than first class postage.The wording is subtle, the results are NOT. Please read the following endorsements carefully and, if you have any questions or doubts, please call.

Return Service Requested

The mail piece will be returned to you with the new address or the reason why it cannot be delivered. The cost is standard first class postage for the piece, depending upon its weight and its size. A letter will be returned for basic first class postage. This is the least expensive way to get the new address for your addressee. It is cheaper to go with this endorsement and mail another piece, than going with another endorsement.

Address Service Requested

The mail piece will be forwarded to the addressee, and a separate notice will be sent to you with the new address.

A weighted fee is charged which is more than first class mail. You are charged for the forwarding and also for the piece which is returned to you.

No endorsement

Undeliverable Presort Standard Mail is disposed of by the USPS.


Endorsements may be placed in any one of the numbered areas shown below.

Indicias   top

An indicia, also known as a permit imprint, goes where a postage stamp would go. It usually includes the city of entry, where the mail was mailed, and the owner’s permit number.

An indicia is different than a stamp or meter imprint because postage was paid in advance. It also meets all the requirements of permit imprint mail including presorting, reporting, weights and numbers. If you meet these requirements you can save up to 66% of first class postage.

Using an indicia without the permission of the indicia holder is illegal and will result in fines and penalties.

An indicia is usually imprinted at the time the mailing piece is printed. It eliminates the extra cost of having to meter, apply a postage stamp, or otherwise apply postage to the mailing piece.

Types of Indicia

Standard Indicia – Includes 5 or 6 lines

Presorted Standard First Class Mail Presorted First Class
Presorted Standard Mail Indecia First Class Mail Indecia Presorted First Class Mail Indecia
Presorted Standard

US Postage


City State

Permit No ###
First Class Mail

US Postage


City State

Permit No ###

First Class Mail

US Postage


City State

Permit No ###

(Click the thumbnails for larger, printable images)

Presorted Standard AKA “Bulk Rate”

The words “Bulk Rate” have been replaced with the words “Presorted Standard” which can be abbreviated “Prsrt Std.” The minimum size for an indicia is 1/2 x 1/2 inches and no bigger than 1 1/2 x 1 1/2 inches.

Tips for better Mailings   top

After almost 20 years in the mailing business, we’ve noticed a few things that successful mailings have in common.

Keep it Simple

One of the most important things you can remember about your mail design is the phrase Keep It Simple! Less is best! Make your text straightforward, short, easy-to-read and attractive.


Graphics are wonderful at expressing information quickly and effectively! Pictures really are worth a thousand words. If you can make a graphic work to enhance or further explain your text, take advantage of a great tool!

They Aren’t Dumb

Postage stamps, fancy envelopes, “window dressing,” and other assorted attempts to attract your addressee’s attention are less important than your message. People are very savvy these days. If you’re trying to “snow” or fool a person into reading your message, you have already lost the impact of your piece. Make your piece interesting and pertinent.

Respect the intelligence of your addressee, don’t insult it!