Building wooden structures

[Barbarar20]

I am trying to build my own structures for my o scale layout out of wood. Are there any places where I can purchase pre-constructed  windows or any other conponents I might find handy?

[IRONROOSTER]

Grandt Line [url]http://www.grandtline.com/[url] makes O scale parts.

Enjoy

Paul 

[loathar]

http://www.rustystumps.com/products.asp?id=4

Here's another.

[UpNorth]

Small selection here of O scale windows :   http://www.tichytraingroup.com/