https://pe.usps.com/BusinessMail101?ViewName=Cards

Sizes for Postcards. Postcards are an inexpensive way to get an immediate message to customers. When they arrive in the mail, there's the message -- no ...

https://pe.usps.com/BusinessMail101?ViewName=SizeAndShape

Size and Shape. The Postal Service separates all mail into one of four size categories: postcards · letters · large envelopes - known as "flats" · parcels. There are ...

https://pe.usps.com/BusinessMail101?ViewName=Flats

The Postal Service uses the word "flats" to refer to large envelopes, ... Large Envelopes exceed one or more of the letter size maximum dimensions. ... Sizes for postcards · Sizes for Letters · Sizes for parcels that weigh 13 ounces or less.

https://blog.mailing.com/simple-guidelines-for-usps-postcard-rate-size-

Jun 14, 2018 ... USPS Postcard rate and size guidelines can get tricky. But we're ... Postcards are great examples of direct mail that work well when done well.

https://www.papersizes.org/postcard-sizes.htm

Postcard sizes explained, together with maximum and minimum dimensions in inches (in) and millimetres (mm) as specified by the US Postal Service (USPS) ...

https://www.printplace.com/articles/standard-postcard-sizes

When it comes to postcard printing, size does matter. Postcards are a popular direct mail tool. To best make use of USPS rates, they have to meet certain ...

https://www.postcardmania.com/blog/usps-postcard-size-guide/

Sep 7, 2018 ... Most small business owners don't realize that the largest cost in a direct mail campaign isn't design or printing — it's postage! But: You can ...

https://www.stamps.com/usps/postcards/

USPS First Class postcards are a low cost method to send marketing materials to your customers. Stamps.com allows you to easily buy postcard postage.

https://www.summitprintingpro.com/resources/postcard-specs.html

US Post Office is concerned — there are just minimum and maximum allowable sizes. What is the size of a postcard that has the ...

https://www.umkc.edu/finadmin/mail/documents/USPS%20standard%20dimensions%20for%20postcards%20letters%20flats.pdf

Below are the USPS standard dimensions for postcards, letters and flats. Postcard. Dimension. Minimum. Maximum. Height. 3-1/2 inches. 4-1/4 inches. Length.