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Old 01-28-2013, 09:58 PM
Thordra Thordra is offline
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So i was thinking today during school about a thread a read a few days ago about a reinforced door. So i put my mind to it and decided on an idea for one. This is for a hollow door. Start by removing the door then cutting a hole in the bottom of the door. Get some old sheets of plywood and compress then together as tight as you can get them. Insert compressed plywood sheets into the door. Put three deadbolts on the door and add two more hinges. The more or less break - proof part is the last part that would be added. 3 old solid steel rods drilled through the door that are retractable with a wind able wheel on the side of the wall. Replace the screws on the hinges. I have no idea if this would work or not i am just throwing to out there as something i would like to do this summer with an old room once we move.
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Old 01-28-2013, 11:29 PM
carl.net carl.net is offline
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My grandfather had a door built that was supposed to withstand being broken in. Was essentially multiple sheets of metal welded together. The issue was that to keep it from being broken in you have to mount it as an outward opening door so the frame helps keep it from being pushed in. Some dudes showed up with a cutting torch and cut off the hinges, drilled through the door, inserted an anchor into the hole, and pulled the door out of its metal frame. I am sure you could build one but it will only slow them down not stop them. And unless your walls are made of steel reinforced concrete then a good old sledge hammer will go right through the wall next to the door in short order.
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Old 01-28-2013, 11:42 PM
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I just finished building my BOL and i designed all the doors to be handicapped (36" wide) and they all open outward....They are steel industrial doors with steel reinforced frames.....
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Old 01-28-2013, 11:49 PM
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Originally Posted by carl.net View Post
unless your walls are made of steel reinforced concrete then a good old sledge hammer will go right through the wall next to the door in short order.
My thoughts exactly, it's amazing how vulnerable houses are unless they are concrete or brick. I am an ex contractor and demo on the exterior of a house (stucco or siding) was always the fastest part of the job (except the clean up) and for the most part could be done with hands and hand tools.
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Old 01-29-2013, 12:17 AM
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No door is break proof. Most ordinary doors can be defeated in seconds with readily available tools.


The following comments are only theoretical; don't take this stuff to seriously.

Plasma torches are a good way to cut your way in. Acetylene torches are easily portable. Personally, against a heavy steel door, I would venture to use Primacord along the entire door frame, perhaps a breaching charge against an adjacent wall as a backup in case the Primacord doesn't work. To me, that would be the fastest way of defeating a reinforced door. Although it is not the most discreet way...

Most often, if a door is very menacing, the break-in artist will figure another way in (for example, roof entry is the most common way for professional criminals)
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Old 01-29-2013, 03:27 AM
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a 12' thick steel pocket door should do it...

In all seriousness though; you need to decide what exactly you are trying to guard against. Anything can be defeated, the average person should be concerned with just buying time. My exterior doors are much heavier duty than my interior doors but my interior doors to rooms and such can all withstand a few kicks...and its going to take far more time for you to do that than it will for me to reach my gun, set up a barricade, and take care of things...

The door is not what usually fails, it is the frame (talking exterior doors). Reinforce your frame with 3" screws then put metal strike-plates where the lock and latch go into the frame....better yet replace it with an all metal frame. My exterior doors are solid pine and laminated with 1/4" steel. I use flat hinges so there are no visible hinges and there are three locking points on the doors so they are very secure just on their own. For added security I added the OnGuard door stop products to each exterior doors...its simply AMAZING. I have had two break-in attempts and one person used a sledge hammer...they were not able to get in. All interior doors are solid wood doors with reinforced hinge, frame, and strike plates. The bedroom doors have hinged latches and are auto locking...its all to buy time. I also added solid 1/2" pine board in between the studs of the bedrooms that have walls susceptible to being broken through...no sense in having a kick-proof door when you have a wall that someone can punch through. The exterior of our home is all brick and no windows on the front so we are lucky. The windows that we do have, have a glass laminate and, again, would require an axe and about 10 min. to get through. I don't intend to stop anyone completely...just give me and mine time to get ready.

beyond this; intrusion system, surveillance system, and various armaments all add to the total package.

So, are you asking how to make your own door or how to modify an existing door? If the latter; replace it with a solid core door, reinforce the jamb and invest in some GOOD locks. Add "kick-stop bar" and a cheap magnetic door alarm...that is probably as good as it gets without cashing out.
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Old 01-29-2013, 06:06 PM
*astid *astid is offline
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I often thought of this project, but the fact that I can throw a rock threw my window made me rethink the idea.
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Old 01-29-2013, 06:37 PM
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I dealt with very smart and evil individuals while I worked for a government agency and one told me that with a handy man jack he could jack the frame apart wide enough for the door knob bolts to come out of the frame . food for thought. Criminals are smart and all u r gonna do is slow them down . Be on your toes at all times.
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Old 01-29-2013, 06:58 PM
Rdrasj Rdrasj is offline
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Quote:
Originally Posted by Goat-herder View Post
I dealt with very smart and evil individuals while I worked for a government agency and one told me that with a handy man jack he could jack the frame apart wide enough for the door knob bolts to come out of the frame . food for thought. Criminals are smart and all u r gonna do is slow them down . Be on your toes at all times.

Thats easy to solve with a 1" stainless floor pin that drops in behind the door and another that comes down from the top. Full length piano hinge is also a better idea than three seperat hinges and will do a better job supporting the weight of the door
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Old 01-29-2013, 07:20 PM
DaleK DaleK is offline
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The Hell's Angels thought they had an unbreakable door in their clubhouse in Sherbrooke, Quebec. First time the police raided the place it took a D8 to knock it in. Yes it's a reinforced concrete bunker. They spent many, many $ replacing it with one that's supposedly a 1' thick steel pocket door opened hydraulically from within only by a club member or associate that's always left inside. They tested it with another D8 and it only left a small scratch. Still, if somebody has the time and motivation....
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Old 01-29-2013, 07:26 PM
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Quote:
Originally Posted by joes View Post
I just finished building my BOL and i designed all the doors to be handicapped (36" wide) and they all open outward....They are steel industrial doors with steel reinforced frames.....
The problems with doors opening outward are many: 1. what if they want to keep you in (you want to be able to open the door). 2. hinges are exposed.
3. door can not be reinforced enough and cannot be too heavy. 4. As was mentioned by others, "they" can pull the door off the frame completely with enough force (large truck). Other problems also.
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Old 01-29-2013, 07:36 PM
Meat Guy Meat Guy is offline
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I would not use a hollow core door to start with.
I shortened one last week and the edge was sawdust with some glue is what it looked like. Much worst than particle board.
Most jams wouldn't hold up well.

Do what Joes did with an industrial door and jam with a dead bolt high and low.
It will still only be as strong as the wall.
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Old 01-29-2013, 08:40 PM
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Maybe he doesn't want you to come in Meat Guy. XD <Just kidding>
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Old 01-30-2013, 12:33 AM
Glock803 Glock803 is offline
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Quote:
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I just finished building my BOL and i designed all the doors to be handicapped (36" wide) and they all open outward....They are steel industrial doors with steel reinforced frames.....
This^.... outward opening doors is key with a storm door to lock while you're home. There's plenty of ways to protect the hinges.
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Old 01-30-2013, 12:43 AM
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Quote:
Originally Posted by GG42 View Post
The problems with doors opening outward are many: 1. what if they want to keep you in (you want to be able to open the door). 2. hinges are exposed.
3. door can not be reinforced enough and cannot be too heavy. 4. As was mentioned by others, "they" can pull the door off the frame completely with enough force (large truck). Other problems also.

I appreciate your input....IF you were to see the door and the special details that went into it and the building you would appreciate it...
As far as a door that is so called "too heavy" visit a local bank and look at their vault door for the room to the safe deposit boxes....
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Old 01-30-2013, 01:25 AM
Iminocca Iminocca is offline
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In Calif it's actually illegal to have a "fortified" entry door! I know, I know...you're all really surprised by that!
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Old 01-30-2013, 08:49 AM
Meat Guy Meat Guy is offline
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A standard residential steel or fiberglass entry door can provide a decent amount of protection if installed right. It wouldn't appear any different.

There are a few things that can be done to fortify them.
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Old 01-30-2013, 09:13 AM
sam houston sam houston is offline
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The Best Door setup you can get is to Buy all Commercial , A Wrap around Type door frame that is secured by being attached completely to the wall and not just screwed to The inside of The Jamb, that coupled with a solid steel Fire Door. It's very hard to get inside these doors after you attach Cross bars and a couple slide bolts. A Battering Ram will not get thru them. It's actually easier to crash thru the wall beside the door than the Door itself. You can call any Commercial door company and buy used or discontinued models very cheap sometimes.
http://cdfdistributors.com/cdf/commercial-steel-doors
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Old 01-30-2013, 11:22 AM
GG42 GG42 is offline
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Quote:
Originally Posted by Meat Guy View Post
A standard residential steel or fiberglass entry door can provide a decent amount of protection if installed right. It wouldn't appear any different.

There are a few things that can be done to fortify them.
Yes. If installed "right" they can provide up to 10 seconds delay (Ihave actually studied this). Now, 10 sec is better than 2 sec, but it is not security in my book.
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Old 01-31-2013, 07:07 AM
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Quote:
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Yes. If installed "right" they can provide up to 10 seconds delay (Ihave actually studied this). Now, 10 sec is better than 2 sec, but it is not security in my book.
10 sec. is long enough to get gun in hand.
Most intruders will look for an easier place to enter if door isn't easily forced opened.

I was not encouraging the use of a residential door, I just meant that there are ways to install that will improve the security of the door.
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