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Thread: First Class Mail: Letter, Flat or Parcel?

  1. #1

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    SYSOPR is offline
    ShipRush Endicia prints postage for domestic First Class Letters, Flats and Parcels.

    So... what is the difference between a 'flat / large envelope' and a 'parcel' ?

    This is important, as the parcel rate is higher.

    First, let's back up a tad to review the types of mail that can be sent First Class:

    1) Letter Post. Letters, postcards, etc. This tops out at 3.5 oz and must be within the max size restrictions for letter post (6.12 x 11.5 inches). The max thickness for letter post is .25"

    2) Flats/Large Envelopes: Minimum size is 6.12 x 11.5, max size is 12 x 15, max thickness is .75"

    3) Parcels: Everything else that is 13 oz or less (the max weight for First Class)


    The post office adds: Flats/Large Envelopes must be flexible. Even if packaged in something that is defined as a Flat (see definition above), the envelope must bend naturally (under its own weight) to be defined as a Flat.

    ShipRush for Endicia only processes labels and postage for shipments that include Delivery Confirmation (DC). The post office recently reminded shippers that Flats are not eligible for DC.

    So while many shippers have been happily shipping Flats with DC, and all has been well, this is not in conformance with protocol, and will soon no longer be available.
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  2. #2
    I did a google search and Parcels using Parcel Post service can weigh up to 70 lbs!!!! But First Class parcels can only go up to 13 ounces.
    Last edited by SYSOPR; 08-26-2011 at 02:20 PM.
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  3. #3

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    SYSOPS is offline
    This discussion was only in regards to First Class Mail. 13oz is the max for First Class.

    SYSOPS
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  4. #4

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    Quote Originally Posted by EnterpriseLady View Post
    I did a google search and Parcels can weigh up to 70 lbs!!!! not only up to 13 ounces.
    Thank you for the note.

    You are correct. "Parcel post" allows up to 70 lbs. "First Class" parcels are limited to 13 oz.

    These limits are set by the postal service.
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