The maximum size for a flat provides plenty of room to put lots of material in the envelope. But keep in mind that weight usually affects price – the higher the weight the higher the postage, especially for First-Class Mail.

Flat-Rate Package Options. If It Fits, It Ships ®. Priority Mail ® service offers a variety of Flat-Rate Boxes and Envelopes that ship for the same price to any domestic address, regardless of how much they weigh or how far they’re going. Prices vary by product, as shown in the table below.

Representation of M.S. Flats is done by the Width (W) & the Thickness (T) of the Flat. For example: When we say 25 X 5 FLAT, it means Width = 25mm & Thickness = 5mm. Following are the various sizes of HR Sheets in terms of Thickness:-

Weight restrictions for domestic Priority Mail Express Flat Rate Envelopes, and Priority Mail Flat Rate Envelopes and Boxes are 70 pounds. Weight restrictions for Priority Mail Express International Flat Rate Envelopes are 4 pounds.

Sizes MS Flats: 25 mm x 4 mm to 300 mm x 16 mm MS Serrated Flats: 25 mm x 4 mm to 50 mm x 8 mm. In case of fixed length supplies, tolerance in length maintained by us will be + 100 mm.

To fit the definition a flat must: Have one dimension that is greater than 6-1/8 inches high OR 11-½ inches long (the side parallel to the address as read) OR ¼ inch thick. Be no more than 12 inches high x 15 inches long x ¾ inch thick. Weigh no more than 13 ounces.

What is the difference between a Letter-Size mail piece and a Flat-size mail piece (and why is this important)? A Letter-Size mail piece is defined as being at least 3 ½” x 5” in size, but no larger than 6 1/8” x 11 ½”, and is uniform thickness.

Mar 9, 2024 · Here are the criteria for USPS to consider a parcel as a “flat.” The envelope shouldn’t exceed the maximum size of 15in long x 12in high x 3/4in thick. The weight shouldn’t exceed the maximum 13oz. The envelope’s shape must …

3-2 Dimensions for Letter–Size Mail and Flat–Size Mail. The Postal Service classifies the shape of your mailpiece by its dimensions. Standard Mail discount mailings may be letter–size or flat–size. The size and address placement determine the shape.

for flat bars thinner than 1/4”, see strips (page 16) STANDARD LENGTHS: HOT ROLLED - 20’; 1018 COLD FINISHED - 12’ To order by telephone, call 713-926-2020