Title: Post thumbnail sizing issue
Last modified: August 21, 2016

---

# Post thumbnail sizing issue

 *  [focuspress06](https://wordpress.org/support/users/focuspress06/)
 * (@focuspress06)
 * [12 years ago](https://wordpress.org/support/topic/post-thumbnail-sizing-issue/)
 * When I add a featured image/post thumbnail (NOT a header image) to a post, no
   matter what size the upload is it automatically stretches to become a massive,
   screen-sized image at the top of every post. I’ve tried to add the set_post_thumbnail_size
   code to my functions sheet, but haven’t had any change. I’m very new at all of
   this, so I might be adding the code to the wrong place. I just don’t know and
   can’t find what setting to change or what code I need to add and where to add
   it after reading all the forums and help topic pages.
 * Here’s a sample – [http://focuspressblog.com/2014/06/19/test/](http://focuspressblog.com/2014/06/19/test/)
 * _[Duplicate: [https://wordpress.org/support/topic/featured-image-oversized-2?replies=1%5D](https://wordpress.org/support/topic/featured-image-oversized-2?replies=1%5D)_

The topic ‘Post thumbnail sizing issue’ is closed to new replies.

## Tags

 * [featured image](https://wordpress.org/support/topic-tag/featured-image/)

 * In: [Fixing WordPress](https://wordpress.org/support/forum/how-to-and-troubleshooting/)
 * 0 replies
 * 1 participant
 * Last reply from: [focuspress06](https://wordpress.org/support/users/focuspress06/)
 * Last activity: [12 years ago](https://wordpress.org/support/topic/post-thumbnail-sizing-issue/)
 * Status: not resolved

## Topics

### Topics with no replies

### Non-support topics

### Resolved topics

### Unresolved topics

### All topics