# The Window Casing – Original vs Replacement: What you need to know for proper function and design

- Link: https://www.oldhouseguy.com/window-casing-design/
- Published: 2012-07-18T22:13:00-04:00
- Author: Ken Roginski

[⌊window design diagram⌉⌊window design diagram⌉[There are a lot of bad replacement
windows out there and that is because most homeowners do not know or care how bad
windows will change the appearance of their house.

The window salesperson is usually a first level salesperson who will say anything
just to get you to purchase windows from them.

There are some decent replacement windows available that will not look as ugly as
those you are familiar with.

Although keeping your original wood windows is the best choice, **if you must consider
replacement windows, you must also understand the details and measurements that 
can make them look good or bad**.  You must be an educated consumer.

[The OHG Windows Page has been updated.  Click here to learn new important information about window design. ](https://www.oldhouseguy.com/window-designs/#windowcasing)