May be used for U.S.P.S. Residential door mail delivery; Made of brass; Letter size mail slot overall dimensions are 8-3/4' W x 2-7/8' H; Rough opening dimensions are 6-7/8' W x 1-3/4' H; Include an 8' W x 2' H spring loaded flap; Include 2 pieces - flap for the front of a. Mail Slot Size The size of your installed mail slot should be large enough to accommodate large envelopes, magazine subscriptions, or small parcels, and according to the USPS mail slot requirements, the mail slot size should be at least 1 ½ by 7 inches in size.
Sizes for Letters
. Machinability: Size restrictions for First-Class Mail 1 ounce or less; Standard Mail 3.3 ounces or less Machinable Sizes: To meet machinable requirements, the tip of the upper-right corner of the mailpiece must touch this shaded area and meet the thickness standards (check for maximum thickness by passing the piece through the slot below). Standard Mail Slot, Magazine Size, Chrome Item # 3YPA9; Mfr. Model # 4045C UNSPSC # 24112407 Catalog Group # D0049 Catalog Page # N/A Mail slot has a spring-loaded flap for the front of a wall or solid door. Includes brass construction and inside trim for the back. May be used for U.S.P.S. Residential door mail delivery; Made of brass; Magazine size mail slot overall dimensions are 13' W x 3-1/2' H; Rough opening dimensions are 11-1/4' W x 2-1/2' H; Include an 11-3/8' W x 2-3/8' H spring loaded flap; Include 2 pieces - flap for the front of.
Standard Mail Slot Dimensions Chart
You probably have a picture in your mind of what a 'letter' is. Possibly you're using a standard No. 10 envelope for your letter, so that's easy to picture. However, if you decide to create a mailpiece with its own special envelope or if you are designing a piece that will be folded to letter-size, be sure to keep in mind the following size requirements for letters:
| Dimension | Minimum | Maximum |
|---|---|---|
| Height | 3-1/2 inches | 6-1/8 inches |
| Length | 5 inches | 11-1/2 inches |
| Thickness | 0.007 inch | 1/4 inch |
To be eligible for mailing at the price for letters, a piece must be:
- Rectangular
- At least 3-1/2 inches high x 5 inches long x 0.007 inch thick.
- No more than 6-1/8 inches high x 11-1/2 inches long x 1/4 inch thick.
First-Class Mail letters that have one or more nonmachinable characteristics will pay a nonmachinable surcharge. Customers can be unpleasantly surprised that they must pay extra postage when, for example, they mail a square greeting card. The Postal Service charges extra postage because mailpieces that are rigid, square, or unusually shaped, often jam postal equipment and are difficult to process. This costs the Postal Service time and money—and may also damage your mailpiece.
Many mailers fold sheets of paper to form letter-size pieces or newsletters. Folded pieces, or folded self-mailers, can save time and money because you're not paying for or stuffing envelopes. Folded self-mailers must be sealed or they will be subject to the nonmachinable surcharge. We recommend that you use wafer seals or tabs to close the open sides of folded mailpieces.
Here's some good advice on tabbing: Put the fold on the bottom (the side below the address) and secure the opening at the top with a piece of tape, a tab or a wafer seal.
There are special size requirements for mailing letters at automation prices. Contact your Business Mail Entry Unit for more information.
Standard T Slot Dimensions
TIPS
- 0.007 inches? How do I measure that? As a guide, an index card is thick enough. If in doubt, contact a Mailpiece Design Analyst (MDA) near you. MDAs have tools for precisely measuring thickness and can tell you if your mailpiece is thick enough.
- What is high? What is long? Length is the side parallel to the address. Height is the side that is perpendicular to the length.
Standard Slot Sizes
Standard Mail Slot Dimensions
- Sizes for parcels that weigh 13 ounces or less.