Sizing Guide
The size of your piece, along with the weight, will determine what postage rate it will be eligible for.
Postcard
Letter or Self Mailer
Flat
Square or
odd sizes
Postcard
In order to mail at postard rates, a postcard must meet the following requirements:
| Minimum | Maximum | |
|---|---|---|
| Length (Width) | 5 inches |
6 inches |
| Height | 3.5 inches |
4.25 inches |
| Thickness | .007 inches |
.016 inches |
Please Note: there is NO Non Profit postcard rate. Please click HERE for more information on Postcards for Non Profit companies.
The first class presort postcard rate should be utilized by for profit companies only. Please click HERE for more information on Postcards for Profit Companies.
Additional tips on Postcards, can be found HERE
Letter or Self Mailer
"Letter Size" encompasses oversized postcards, traditional letters, newsletters and self mailers.
Items are considered at letter rates if they meet the following requirements:
Letter sized:
| Minimum | Maximum | |
|---|---|---|
| Length (Width) | 5 inches |
11.5 inches |
| Height | 3.5 inches |
6.125 inches |
| Thickness | .007 inches |
.25 inches |
| Aspect Ratio (lenght divided by height) |
1.3 inches |
2.5 inches |
Please click HERE for a sample of a letter sized piece
If this item is a self mailer - please see the tabbing section to determine how best to design the piece.
For additional tips, please check out our Newsletter / Self Mailer Tip Page or the Personalized Letter Tip Page.
Flat
An item is considered a flat if it exceeds ANY of the maximum dimensions of a letter sized piece.
| Minimum | Maximum | |
|---|---|---|
| Length (Width) | 6 inches |
15 inches |
| Height | 5 inches |
12 inches |
| Thickness | .009 inches |
.75 inches |
| Weight (for standard rate) | 15.9 ounces |
For tips on designing your flat piece, please check out our Address Position Requirements Page
Square or Odd Sizes
Because of the postal equipment, anything that is a perfect square, an odd shape, OR is a rectangle, but has an aspect ratio (length divided by height) of less than 1.3 or more than 2.5 is subject to a non-machineable surcharge. In addition, because these pieces are non-machineable, they will receive a higher postage rate as the automation discounts will not apply. Because this surcharge varies depending on the size and shape of the piece, please contact Rescigno's for more details.
