This posting looks to me like a not-very-subtle advertisement, but maybe I'm suspicious because I've observed the U.S. congress too long.

My stores actually sell 3 different ones. Duraceramic, which is definitely softer than tile, and is waterproof. You will hear negatives about chipping or scratching. We are one of top 5 sellers of it in our state and have very few complaints. Another option is Nafco Permastone LVT with grout fit. Our cost is about a buck a foot less than Duraceramic and will not chip. Looks about as real as Duraceramic. Duraceramic is a dead ringer to the real thing. 3rdly w carry a product called earthworks. Again about a buck a foot our cost less than Nafco. Does well, no grout joints though. Wont chip. If I were you I would be looking hard at Nafco with big active family. It can take on a lot of water, pretty tough to scratch as I test them all independently myself.It will be softer than real tile for sure, and warmer, and quieter. A slab has natural WARMTH BUILT INTO IT if designed correctly just from the frost free earth under it. The slab will not make that much of a difference under foot vs wood. It will give your products a measure of toughness that will not come with wood as there is no flex when something drops on it. Much more difficult to chip it as the chips come many times from the deflection of the substrate underneath. We demonstrate toughness by wacking on many of our products that are showroom floors with a hammer. i do not believe it would nearly as an effective demonstration if not for the slab these products are on. You dont want laminate in my mind..not with 4 kids and a dog in a kitchen area. Forget konecto too. no way. Not Karndean either. LVT in my opinion or the real thing ceramic tile. You have a monster edge on affording real tile over most because of that slab. Real tile is the only one of all the mentions that will add to home value as a plus when doing comparisons on an appraisal. If the hardness thing is for medical reason, i get it. But if it is for choice only, you are over thinking it. What do the most luxurious homes in the world have? Stone or marble or tile. None of this other junk compared to the real thing. The number one reason tile is not used in wet areas is not because of coldness or hardness or it chips, blah blah blah. It is because of money...don't let anyone tell you different. My company sells a ton of hard surface and when they are anti tile..it is usually because they are afraid of hearing the number to buy it. Now if it is medical, I might buy that thought. Not trying to insult anyone here, just trying to make sure somebody who could not afford it or is jealous of tile is not whispering this hard thing in your ear. If you want in in the baths, than you'll love it in your kitchen as you can not hurt the stuff unless you are just abusive to it. Good luck. A lot to think about and I understand that this is a tough subject for some. My sales people run from making true statements like these to people and honestly, people want to hear experts true opinions on stuff. They can tell when its coming from the heart and need to hear someone who has been in the business real thoughts. Good Luck and enjoy your new home.

Thanks a bunch for all the good input. 1)The hardware links upthread are great, although I haven't located anything from them that fits the bill. 2) Jumpilotmdm & millworkman: You're right. Doors are 1-3/4" thick. Typo corrected. Btw: Doorknob setback is 2-1/2" - 2-5/8". (I took off a touch too much wood on the door edge to get the doors to fit 3) circuspeanut: 'There are locking slide bolts you could install on the desired side, but they appear to be intended for non-wooden patio doors and are rather hideous - maybe with some luck you can scare up a nicer version?' It's concept that had occurred to me (even though the doors already have two slide bolts on them), but I looked around and couldn't find a locking one. And your right regarding hideousness ... might as well put a hasp and padlock on the door, which I am unfortunately very close to doing as my time is running out and I need a solution. 4) sacto_diane: A rabbeted mortice looks promising, though it seems it would be perhaps a federal case to get locate one that would fit? Also, I'd prefer if at all possible, a modern key vs. skeleton key, but if I could locate a correct rabbeted mortice I'd likely call it a day.

I would just stop doing anything. Lightly sand the poly as it peels off and live with it as it is.