This will only work in a perfectly squared room with completely straight walls. If the walls are not straight, you'll see it instantly when trying to lay the tiles because they will not line up correctly. Always start from the center of the room and cut out your edges and corners.
![[DIY] How to apply carpet tiles](http://i.ytimg.com/vi/Y8-G3Rg29YM/mqdefault.jpg)
This will only work in a perfectly squared room with completely straight walls. If the walls are not straight, you'll see it instantly when trying to lay the tiles because they will not line up correctly. Always start from the center of the room and cut out your edges and corners.