The traditional construction method for wood doors is to combine stiles (the vertical components) and rails (the horizontal components) to create a door style.
Fiberglass doors mimic this construction method by including stile and rail lines on the models.
![](https://learn.reeb.com/wp-content/uploads/2022/11/kb-f66.jpg)
6-Panel Wood Door
![](https://learn.reeb.com/wp-content/uploads/2022/11/kb-s210.jpg)
6-Panel Fiberglass Door
Doors with glass have a lite insert placed in the door. For example, a full lite can be created by taking a 6-panel door, cutting the panels out, then inserting the lite. This will create a door model with stile lines.
![](https://learn.reeb.com/wp-content/uploads/2022/11/kb-s6002.jpg)
![](https://learn.reeb.com/wp-content/uploads/2022/11/kb-s6090.jpg)
![](https://learn.reeb.com/wp-content/uploads/2022/11/kb-s1652.jpg)
![](https://learn.reeb.com/wp-content/uploads/2022/11/kb-s6008.jpg)
Fiberglass doors made without stile and rail lines are known as flush doors. The same process of adding a lite insert can happen meaning the door model will be without stile lines.
![](https://learn.reeb.com/wp-content/uploads/2022/11/kb-s310.jpg)
![](https://learn.reeb.com/wp-content/uploads/2022/11/kb-s6095.jpg)
![](https://learn.reeb.com/wp-content/uploads/2022/11/kb-s1651.jpg)
![](https://learn.reeb.com/wp-content/uploads/2022/11/kb-s369.jpg)
While having a lite in a flush door is a possibility, this door will look less like a wood door and be less architecturally correct.
![](https://learn.reeb.com/wp-content/uploads/2022/11/kb-s6002closeup.jpg)
![](https://learn.reeb.com/wp-content/uploads/2022/11/kb-s310closeup.jpg)