The 4×6 postcard is the standard size of postcard and the most commonly used sizing. Templates for the postcard size can be found here.
Click To Download The 4×6 poscard template
![4x6 postcard 2016-02-12_12-14-31](https://standardpostersizes.com/wp-content/uploads/2016/02/2016-02-12_12-14-31.png)
Standard Paper, Poster Sizes And Dimensions
Paper, Poster Size Information And Learning
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