Cat Mate 4-Way-Locking Cat Flap with Door Liner to 50mm (2 inches), Easy Installation in UPVC Doors, Walls, and Wooden Doors - White

Have a old feral cat that figured out how to defeat a couple of OTHER cat doors! Not this one. He is learning to stay indoors at night.

Don't expect perfection at this price. It's basically a hole liner with a swinging flap. Heed everyone's warnings and you'll be fine. If the provided "sticky strip" on the template rips in half when removing the bag, just use some masking tape. The door I installed it into is an old, hollow, finished wood grain door. Pencil is no good. I scratched my lines with an awl.1) Find the middle of the door, and make a mark.2) Measure 4" up from bottom (adjust for non-average cat size, basically you want belly level for the bottom of the hole) and use a small level to score a line. Unlevel mounting of any pet door might affect the swing of the flap.3) tape template up, even with line, and centered (fold in half for simple center, because they didn't mark it.)4) draw or score lines around template, then remove template5) drill holes big enough for saw blade to enter, anywhere inside the scoring/marking6) get a jigsaw w/ long enough blade or sawsall, and go to town. Some points:a) I cut in 10 minutes w/o removing door. this required some extra holes for ease. knees get a little dirty, but it's fine.b) i cut to the line, mostly, but straying outside of it a bit. don't worry. the flange is super wide and will cover small mistakes. I didn't even bother with the rounded corners. Just don't get so far outside the lines that you leave no wood for the screws to bite into.c) the finer the teeth on your blade, the less tear-out along the edges.7) fit outside half into hole, then inside half. hold flap open to reach through and squeeze them together and make sure you won't have to trim plastic, in case your door is thinner. If everything fits tight, time to screw. If not, trim the plastic as directed.8) use the smallest screws and only push hard until they begin to bite into the wood at first. Then, go slow and gentle. Stop when the plastic frame is pulled close to the door. These doors have paper thin wood, so it won't take but 1/2 turn over-tightening to strip your hole. I didn't bother with the confusing instructions about drilling any of the plastic. These are self-tapping screws that went through fine.Personally, I removed the magnet from the frame side (bottom magnet) with a lot of careful prying and cracked it out w/ cutters, before beginning. The felt makes the door hard enough to swing. I am not really worried about air-flow, though, just so the main door can close, again. I'm sure that with use that felt will smooth out and the door will swing more easily, but the magnets were too powerful for a gentle-natured cat. I played around with half of the magnet and even a tiny sliver of it, and it was still too much. I was going to glue a smaller piece back in, if it worked.Speaking of that, this kitty is large-ish, but super timid and polite. I swear, he "mews" a little "anyone home? can i come in?" before entering any room. Fortunately, he likes to follow us in/outside. So, closing the main door behind us, then calling to him through the clear flap, and holding the flap open for him, and "pawing" the flap back and forth w/ our fingers for a couple of days is about all it took. He now gets that this is his special lil door, and I've caught him just playing with it a bit, making it swing.Awesome product at an awesome price! Thank you, Cat Mate!

This is not a 5-star review because the original order did not arrive as scheduled, apparently lost somewhere in transit by the USPS. And there were a few problems with the door itself, noted below. It is a 4-star review because, when I contacted Seacorals to report that I still had not received the shipment several days after it was supposed to arrive (and was not able to find out anything about its current whereabouts using the tracking number supplied by the USPS), they promptly sent me a new door and expressed considerable concern over the shipping failure. Also, the problems with the door did not prove to be serious.The cat door itself appears to be of good quality, and is not difficult to install, though installation in a 1.75 inch thick solid-core door between our house and garage presented some challenges.First, the liner that fits inside the cut-out is not nearly long enough to cover the entire thickness of a door this wide, leaving an unappealing brown strip visible through the middle of the opening. I solved that problem simply by lining the cut-out with white plastic duct tape. This matched the white paint of the door and the white plastic of the cat door liner closely enough to be unnoticeable, at least to a casual inspection.Second, although the cat door apparently is supposed to assemble using 8 short #6 screws to independently attach each side of the frame to opposite sides of the door (4 screws per side), I didn't like this "non-aligning" assembly feature. So I decided to get 4 long screws to "self-align" the two sides, cinching them together by passing the screws through the room door around the cut-out. For my 1.75" door, my first guess was that 2.0" #6 screws (the longest #6 screws I could find at the local hardware), would do the trick, but these proved a bit too short to go through the door when widened by the 2 frames on each side of it. I then moved on to 2.5" #8 screws, which were long enough. The extra thickness of the #8 screws was not a problem (I just drilled the pilot holes through the door a little bigger). So that was all good.The installation bonus was that, to position the cat door low enough for the cats to use, I had to install it across 2 raised panels of the room door. This meant there was a "V"-shaped depression in the middle of the opening on each side that, when I first cut it, I thought I would have to fill in with some type of sealer under the frames, to make the opening air-tight. However, when the frames were fitted to the opening--although the inside liner was not long enough to reach all the way through the door--it did prove long enough to completely cover these depressions, providing a good tight fitting seal all the way around the opening on each side, with no additional effort. (If you don't want to settle for the pretty good natural seal provided by the frame liners, you could easily caulk around the outside of the frames to ensure a perfect seal.)As for the cat door itself, once installed, it seems perfectly functional. Although our 2 cats are both still kittens, the door appears to be the perfect "Goldilocks" size -- not too big, but not too small either for an adult cat, just right. Due to the magnetic closure feature, the flap operation of this door is stiffer than the free-swinging flaps I've had in the past -- the flap stops abruptly in the down position and has to be "broken" free when opened -- but that fact didn't seem to bother either kitten, both of whom learned to pass through it freely in less than a day.The 4-way closure feature is logically complete, covering all possibilities (which I appreciate abstractly, as a former teacher of logic), though we only need 3 of the 4 settings. (Open both ways, so the cats can pass back and forth at will; open out only, so the cats can't come back in the house when they are banished to the garage for some reason, e.g., cat-allergic guests; & open in only, so the cats can't go out into the garage when some activity is in process better done without a curious cat in attendance, e.g., working with power tools. I guess the fourth setting, open neither way, might be useful if you had two incompatible sets of animals needing temporary separation.)My only small concern is the plastic locking tab has to be pushed up to slide it back and forth, and I don't know how durable this plastic tab will prove to be over time in daily use (I've had a lot of plastic tabs break off over the years). But, so far, so good.

I bought a more expensive and larger dog door also for our pet raccoon to access her room and I bought this for her to access outdoor enclosure and this thing u feel no cold air coming thru even on a windy day very satisfied and also she has not damaged this one what so ever RACCOON APPROVED the other one I got she already ripped one of the flaps off and she leaves it alone now thank goodness it only has one side flap left. This one way worth the money. In fact the above review was over a month ago I bought another one of these doors bcuz our raccoon got to big to go thru the small door. I sized up still love it as much as the first one I bought

Very good pet door that is installed in a metal porch door. This is the third cat door I’ve purchased and replaced over the past three years. Initial installation was no major problem if you are comfortable with removing the door and cutting the opening. The only issue I’ve encountered is the locking latches. Over a period of time they become weak from twice daily use and as a result my cats have at times locked themselves in or out by inadvertent movement of the latch tabs. Otherwise the pet door is well built and quite serviceable.