I have been VERY pleased with the side-hinged "Rugged Aluminum Kennel Doors" at www.upco.com #KD3 Large 14"x20". Mounted on the outside of the building, they are amazingly airtight and the dogs can easily and safely operate them. They also can be used with a guillotine door. Mine cost $33.50 each, in the fall of 2008. The only problem I've had with them is that the bottom edge of the door was initially somewhat sharp and 'shaved' the hair & a bit of skin off 2 dogs rear legs just above the hock. This was solved by attaching a car door edge-strip (self adhesive) to the top & bottom edge, cost a couple bucks at the automotive store. My kennel runs are on patio blocks over sand and I much prefer this to cement or pea gravel. Conni Fuller Rockford, IL www.MoonshadowGSD.com ____________________________________________________________ Senior Assisted Living Put your loved ones in good hands with quality senior assisted living. Click now! http://thirdpartyoffers.juno.com/TGL2141/c?cp=2TXRo2vJbgoMpqCDvwPxUAAAJ1CelRymJ9x4HjViBUg-o6cOAAYAAAAAAAAAAAAAAAAAAADNAAAAAAAAAAAAAAAAAAASUQAAAAA= ============================================================================ POST is Copyrighted 2009. All material remains the property of the original author and of GSD Communication, Inc. NO REPRODUCTIONS or FORWARDS of any kind are permitted without prior permission of the original author AND of the Showgsd-l Management. ALL RIGHTS RESERVED. ALL PERSONS ARE ON NOTICE THAT THE FORWARDING, REPRODUCTION OR USE IN ANY MANNER OF ANY MATERIAL WHICH APPEARS ON SHOWGSD-L WITHOUT THE EXPRESS PERMISSION OF ALL PARTIES TO THE POST AND THE LIST MANAGEMENT IS EXPRESSLY FORBIDDEN, AND IS A VIOLATION OF LAW. VIOLATORS OF THIS PROHIBITION WILL BE PROSECUTED. For assistance, please contact the List Management at admin@xxxxxxxxxxxx VISIT OUR WEBSITE - http://showgsd.org NATIONAL BLOG - http://gsdnational.blogspot.com/ ============================================================================