Pre tensioned and post tensioned concrete is not well understood. This video describes the benefits and challenges of both methods and describes how they are built. This video serves as an introduction to both topics.

A huge thanks to Erik of Texas Barndominiums for the footage of the post tensioned wedge.

My website is:
http://www.tylerley.com
If you would like to donate to my channel please visit
http://www.tylerley.com/giving

A huge thanks to Hailey Goodale, my director of awesome, for editing this video.