A item must be rectangular to be eligible for postage at the letter rate. 3 1/2 inches tall, 5 inches long, and 0.007 inch thick 6-1/8 inches high by 11-1/2 inches length by 1/4 inch thick (or less if wrapped) The weight limit is 20 ounces (600 grams). A second-class letter does not need to meet this requirement.
There is no minimum width or height for letters. However, the post office will only accept items that can be placed on an envelope 1/2 inch deep. Larger items can be sent at a discount rate.
The postal service does not deliver to P.O. boxes, nor do they deliver to each individual unit within a building. This would be too costly. Instead, a single address label is put on all the mailboxes located on a single delivery route. Mail carriers then visit each house on their route one by one until they have delivered all the mail.
You can write up to two addresses on each label. If you want to tell the post office which units inside a large apartment building should receive your letter, you can list them on separate labels and drop them into different slots in the elevator lobby. The post office will take care of delivering them all later.
Large items such as furniture or appliances can be shipped by freight carrier.
A mailpiece must be at least 3-1/2 inches by 5 inches by 0.007-inch thick and no more than 6-1/8 inches by 11-1/2 inches by 1/4-inch thick to be eligible for First-Class Mail letter rates. A mailpiece is considered as a letter if it fits within these dimensions. Mailpieces that do not meet the thickness requirement are handled as Oversized Letters.
The minimum thickness requirement ensures that letters cannot be discriminated against during processing or transportation. The maximum thickness prevents oversize letters from receiving discounted rates. All items sent at discounted rates must meet all of the regular postage requirements. These include weight, size, and density requirements.
First-Class Mail is available in book rate boxes which contain 32 complete letters in an envelope. Standard Book Rate (SBR) is $1.20 per letter. Envelopes are also sold by the box at $110 for non-priority mail and $165 for priority mail. Each additional piece of correspondence in the same envelope as long as it does not exceed 500 grams (about 17 ounces) is free. Any weight over that limit will cost extra.
Book rate books can only be shipped via the United States Postal Service (USPS). Priority Mail books can be shipped via USPS or DHL.
Books that do not meet the thickness requirement are handled as Oversize Letters and incur an additional fee.
In the United States, the smallest permissible postal size for an envelope is 3-1/2-x-5 (inches). Our site's smallest "mailable" size is 4-bar Envelopes/A-1 Envelopes. There are two types of envelopes used by the post office: flat and rigid.
The flat envelope has two parallel sides and a single vertical side. It can be made of various materials including paper, plastic, or aluminum. The rigid envelope is identical to the flat except that it is thicker and cannot be flattened. It is used mainly for writing letters.
Both the flat and rigid envelopes come in several sizes. The smallest size usable by the post office is called the "mailable" size. This size can be used as an address label on a piece of mail. It should be large enough to contain a reply card or note of 2-3 lines. Anything smaller than this is considered undersized.
The next largest size is called the "flat rate" envelope. This size can be used for mailing items weighing up to 2 pounds. Anything heavier than this requires additional postage.
The largest size available is called the "oversize" envelope. This size can be used for mailing items weighing more than 5 pounds. Most countries have a similar concept of "oversize" mail.
Which envelope sizes necessitate additional postage? The envelope must be smaller than 240mm x 165mm, weigh less than 100g, and be less than 5mm thick to qualify for the regular postal rate. Mail larger or heavier than this size or weight will require additional postage. The exact amount will be shown on your postal scale invoice.
There are four types of additional-postage envelopes: Standard, Compact, Double, and Quadruple.
Standard letters up to 1 oz (30 g) cost $1.20 to send with standard postage. There is no charge for letters up to 2 lbs (907 g). Any heavier and they become charged at $5.50 per pound (500 g).
Compacts cost $3.00 to send with standard postage. There is no charge for letters up to 1/4 oz (7 g). Any heavier and they become charged at $10.00 per ounce (57 g).
Doubles cost $6.00 to send with standard postage. There is no charge for letters up to 1/2 lb (226 g). Any heavier and they become charged at $12.00 per half pound (225 g).
Quads cost $12.00 to send with standard postage. There is no charge for letters up to 1 lb (454 g).
A letter-sized sheet is 215.9 x 279.4 millimeters (8.50 × 11.00 inches) in size. It has a PostScript dimension of 612 x 792 points. The point size number is listed as 023 on the print command line.
Letter size, or US letter, is the standard paper size in the United States and Canada. It is 8 1/2 inches broad by 11 inches long (216 x 279 mm). The other typical paper size in the United States is known as legal, or occasionally US legal. Legal papers are 8 1/2 inches broad by 14 inches long (216 x 356 mm). Each page of a letter-size document can contain from 2 to 12 lines of text, depending on the font used. A page of an ordinary book contains 25 to 30 lines of text or more.
When you write a letter or email, the word "letter" is used to describe the size of the paper that will be used. However, this isn't strictly true - anything up to 18 inches wide can be called "letter"-but for simplicity we usually use the term for papers that are 8 1/2 inches or wider.
The phrase "rule of thumb" comes from early Europeans who would measure the length of their middle fingers and multiply that number by 13 to get a rough estimate of how much cloth they needed for a given project. In other words, it was not an exact science at that time.
In modern terms, a hand span is very close to being exactly 18 inches, so the product of your middle finger and your thumb would be pretty close to the actual width of your palm.
The dimensions and height of US Letter paper are 215.9mm x 279.4mm in millimeters. 21.59cm x 27.94cm in centimeters.
The weight of US Letter paper is 2555g in pounds. 59.5kg in kilograms.
It has a width of 8.5 inches and a length of 13 inches. 20.5cm wide by 31cm long.
Letter is the largest size available for printing on office equipment such as printers and photocopiers. It is also called legal sized paper because it is ideal to use when creating documents with legalese in them such as contracts and bills.
The term "letter" used in printmaking and typography refers to sheets of paper that are 8 1/2 inches by 11 inches or larger. The word can be used for papers of other sizes too, but these will not be considered "letters" in the graphic arts context.
In Europe, where A4 paper is used instead, artwork printed on B4 paper would be considered "letter-sized" if no further reduction was needed for reproduction processes.