 General Information for Patio Pet Doors for Sliding Glass Doors A patio panel pet door may be your best pet door solution. No need to cut a hole in a door or wall. No need to modify your sliding glass door framing. When you move, take it with you. In choosing a patio pet door it is vital to know that your track height is in the adjustment range of the door you have chosen and that the flap size and rise is appropriate for your pet. "Rise" is the height of the bottom of the pet door above the ground. In other words, it is the height that the pet must step over to use the pet door. This dimension is extremely important! The top of the flap is ideally placed at least as tall as the pet at the 'withers' (top of the shoulder). Usually, you'll need to add rise to get the flap up high enough. For example: Your dog is 22" at the withers and you buy a pet door with a 15" flap. You'd need a 7" rise to get the top of the flap up high enough. If you had purchased a 19" flap, then you'd only need a 3" rise. Generally, the shorter the rise the better. As dogs age or become arthritic, it becomes more difficult to step over a higher rise. When in installing a pet door in a door or wall, you can choose the rise dimension. However, most patio panels have a fixed rise. The two exceptions are the Quick Panel III and Thermo Panel IIIe panels which have a patented user-adjustable rise. Here are the key points to consider in purchasing a patio pet panel: 1. Measure the height of your sliding glass door track- Don't just assume that 'it's standard' as they do vary. Using a ruler, measure inside the track, very top to very bottom (see the illustration in the 'Patio Panel FAQ' section). Always compare your track height to the adjustment ranges shown for the various pet doors. Some manufacturers offer custom heights for the occasional odd size. Others don't. 2. Determine how wide the flap needs to be- Open your sliding glass door wide enough for your pet to come through comfortably. Allow room for growth as needed. There's your minimum width. Don't buy a flap that isn't at least that wide. 3. Determine the flap height and 'rise' dimensions you need- Ideally, the top of the flap will be at least as tall as the top of the pet at his 'withers' (top of his shoulders). That way he doesn't have to crouch to use the pet door. The 'rise' dimension is the height of the bottom of the flap above the base of the pet door. That's how much he has to step over.So, flap height plus rise is the height of the top of the flap. Generally, the lower the rise the better. Especially when your pet is older or arthritic, less to step over is better. So you might prefer a flap 17" tall with a 3" rise to one with a 15" height and 5" rise. Both reach 20" at the top, but the taller flap yields a lower rise. More flap and less rise can also be helpful if you've got a small pet that needs to share with a larger one. A pet door that incorporates a 'User Adjustable Rise' makes it simpler and offers more flexibility for the future. 4. Check the color of your framing- Most brands are available in white, satin (aluminum color) or bronze (very dark brown). You can paint any of these to get a different color if you wish but the easiest to paint is the white. Check with your local paint shop for primer and paint recommendations. 5. See if you have dual-pane glass- You probably do and, unless you're in a Very temperate climate area, you'll want to choose a pet door that has dual-pane glass also. You can tell by placing a finger on both sides of your glass. If they look like they're touching, you have single pane. If they stop about 1/2" apart, you have dual pane. 6. If you want dual-pane glass, how about Low "e" also? It performs much better than regular glass in insulating your home Hot Tip: People almost always visually over-estimate the width of the flap needed by their dog. To avoid this problem, call the dog through a doorway opened only enough for him to comfortably pass. Then measure the gap. Features: New! "Low E", Dual-pane, Insulated glass: Complements the insulating properties of the 'Endura' flap even more than in the original Thermo Panel III. New! Award Winning Extreme Performance 'Endura' flap - The best pet door flap ever made. Tired of replacing worn out, leaking flaps? You owe it to yourself to investigate the Endura Flap. Want to see an example of a popular leaker after some use? New! Patented, exclusive 'User Adjustable Rise': Lets the user easily adjust the height of the flap above the base of the pet door to fit taller or shorter dogs (see graphic). This greatly increases the flexibility of the pet door for the future. # 6 may be set to 3" or 5" rise # 8 may be set to 3", 5", or 7" rise # 10 may be set to 3", 5", 7" or 9" rise # 12 may be set to 3", 5", 7", 9" or 11" rise New! 'High Aspect Ratio' design: Much easier to fit your pet. Improves security for medium to large sized pets. Easier to share with a smaller pet. New! 'Green' flap material: Safe for the environment unlike vinyl (PVC) which is not. 'No Tools' Installation. No need to drill holes in your sliding glass door frame. New! Provision to add magnets to increase the already significant wind resistance. Sturdy Locking Cover - Locks pets in or out. Easy-to-use clip lock is better than the old spring loaded pin locks. 'Spring load' design: Can be installed and removed in seconds. Built in 'Anti-Whoops' allows for 3/4" change in adjustment range to accommodate measuring errors or to accommodate a too tight fit. 100% Designed, Engineered and Manufactured in the USA Available in sizes to fit any sliding glass door (minimum track width 1"): Standard ranges include 74 3/4" - 77 3/4" and 771/4"-801/4" Standard 'Oversize' is 931/4"-961/4" Draft Stopper - Stops air leaks between the stationary and sliding panels. Provision to lock sliding glass door and pet flap securely with a 'pin' type lock. Superior Customer Protection: 90 day return, 10 year warranty, 15 year warranty on the "Endura" flap assembly | 
