http://www.aristokraft.com/

http://www.woodlandcabinetry.com/

Ceiling Tile

http://www.usg.com/products/ceiling/index.jsp

Composite Decking

http://www.geodeck.com

http://www.rhinodeck.com

Flooring

http://www.congoleum.com/res-durastone-home.php

http://www.congoleum.com/
Check out their room vision page which allows you to select flooring samples and view them in a kitchen setting.

http://www.karndean.com/home.asp

http://www.bhkuniclic.com/home.htm

http://www.mohawkcarpet.com/carpet/aladdin-carpet.asp

http://www.floridatile.com/

Overhead Doors

http://www.northcentraldoor.com/

Siding

http://www.certainteed.com

http://www.rollex.com

http://www.edcoproducts.com/

Shingles

http://www.gaf.com

http://www.certainteed.com

Interior / Exterior Stone

http://www.bouldercreekstone.com/

http://www.novabrick.com

Strongpanel Steel

http://www.mtlsales.com/
Look under the Agricultural products tab, then Granite City and then select Strongpanel.

Windows & Doors

http://www.andersenwindows.com

http://www.integritywindows.com/

http://www.jeld-wen.com/

http://www.marvin.com/

Wood Mouldings & Trims

http://www.ferche.com/