Finding width of a plane

Hi, I'm new to unity and I'm trying to find the width of an object (a plane) so I can line up multiple planes together. I need this measurement as the planes are randomly picked from an array to be spawned in one after the other (in a line) and each has a different width.
I've been searching online a lot and done a lot of experimenting with no luck, any solutions?
also is there a way to make the join between planes basically seamless?


Thanks.

 

Try Renderer.bounds

 

That worked thanks.

 

Cool