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With Prime-Line’s Jamb Repair and Reinforcement Kit, you can easily secure weak spots and replace the smaller, vulnerable latch and deadbolt strikes commonly installed with entry door hardware; This easy fix can add additional home security and help prevent forced entry. When fully installed, the kit provides up to 12 gauge thickness, at a total height of 59-1/2 inch. The white powder-coated finish will blend right in with most doors and jambs. All parts are paintable. Reinforcing your door is easy, and all fasteners and step-by-step instructions are included. The kit features six, easy-to-install section plates and two door edge guards. It installs with 10, #8 x 3 inch screws. The door edge guards in this kit are designed to fit on 1-3/4 inch thick doors, and the latch plate comes with optional deadbolt knock out plugs to accommodate two different knob-to-lock hole center spacings. For doors hung with a large enough gap between the jamb and edge of the door, these plates can be mounted on the surface of the door jamb. The hardware included with this kit is non-handed, allowing it to be used on left or right-handed, single and double hinged door systems.
From the Manufacturer
This jamb repair & reinforcement kit is constructed of steel components and comes in a white powder-coated finish. It features six easy-2-install section plates and two door edge guards, and it comes complete with 3 in. long fasteners with step-by-step installation instructions. This ultimate door jamb repair & reinforcement kit provides up to 12 gauge thickness, at a total height of 59-1/2 in. when fully installed. It is designed to replace the smaller, vulnerable latch & deadbolt strikes commonly installed with entry door hardware. The door edge guards in this kit are designed to fit on 1-3/4 in. thick doors, and the latch plate comes with optional deadbolt knock out plugs to accommodate 2 different knob-to-lock hole center spacings. For doors hung with a large enough gap between the jamb and edge of door, these plates can be easily mounted on the surface of the door jamb, others may require the plates to be mortised into the door jamb for the best fit. The hardware included with this kit is non-handed, allowing it to be used on left or right-handed, single and double hinged door systems.
Max Higgins Tucker
August 22, 2025
Bought two of these, one each for front and rear door. Very well made, do an excellent job, pretty simple install - 1) measure and mark existing deadbolt and latch strike plates' tops and bottoms, then remove, 2) punch out the rectangular piece you need to let your current deadbolt go through the main/center reinforcement plate, 3) carefully mark screw holes on the jamb for that plate, 4) predrill holes, 5) attach w/ screws, and 6) do the same for the top and bottom reinforcements, noting that they lap under the main/center plate.I spent a lot of time looking at the various products. This is very well designed and made, and a much better price/value than anything I saw. They reinforce the door jamb with ten 3" screws. No way anyone will kick the door in on the latch side, and no more relying on four 1" screws you probably have holding the deadbolt strike plate to the jamb.One (to me) small point - the little reinforcers for the door-side latch and deadbolt hardware didn't fit my door. Too tight to get on the door, and if I did, they would would add enough thickness that the door wouldn't properly close. No big deal to me - the jamb side is much more important - and the product for that app alone is a great value.Sorry this is long. Detail can be useful.
Brian Ray
August 5, 2025
What a great set to add strength to our door really easy to install I wondered about the quality and overall design because the price was really low but the truth is it was just a great deal because it’s strong and well made and definitely gave me peace of mind I would buy this again with no hesitation
Al M
June 26, 2025
I bought this to close a gap between a door and the jamb which causes the bottom lock not to go all the way into the door jamb. I've had a few people just walk in even though the bottom lock was locked and it made me nervous that when sleeping someone could probably get past the deadbolt too as it only goes into the jamb a couple of cm. When I saw this I figured it could be the solution, my landlord seemed not to care about my concern about the gap so I figured if he isn't gonna fix the jamb then I'll fix it myself. When I got the jamb I was a little nervous. It is metal but I found it is bendable widthwise, but once secured against the jamb you can see how secure it becomes, it also raised out against the jamb which helped close the alarming gap I had between the door and the jamb. Now both locks go in deep enough to avoid the door opening when locked. For others with better doors (or landlords) you may have to chisel into the jamb to make it flush but it is well worth the inverstment. Only other problem I had was cutting out the punch outs for the door bolts on the jamb side. They have two cut outs for the most common distance between deadbolt and handle locks, my door didn't match either. 20 minutes of dremel wheel cutting and I was able to get it so the locks would fit through. If you need to repair your door jamb, close a gap like mine, or just want to reinforce your door jamb this is a great product. In my case I installed the product, bought a cheap door alarm and motion alarm to go in the living room to give me added warning if someone ever breaks into my apartment and deducted the costs from my rent and sent the reciepts to my landlord who reluctantly acknowledged it was only fair. Now I can sleep much more soundly at night.
Nizel A.
April 11, 2025
Pricing -Similar products are $100 or more so this is a steal! I was able to get two for less than the price of one! 5/5Packaging - Comes with more than is seen in the pictures (actually has two deadbolt/knob protectors.) Old school plastic packaging so definitely not hassle free, but I guess that's expected from a security company 5/5Design -The jamb parts are double layered which is interesting, but you quickly see why since if one layer fails then the second is still there. If you have double studs or a 4x4 then you'll quickly wish the kits came with at least a 4" drill bit since normal bits don't go far enough with makes you have to give extra effort in-order to get the screws in without stripping them. Other than that, setup is fairly simple so once you do one part, you'll breeze through the rest. The only confusing part was keeping up with all of the different screws for each part (instructions don't specifically say what goes with what.)The design itself is great. As with anything the more screws you add, the more strength it has, so the same applies here. It almost spans the entire length of the jamb & there's numerous 3" screws throughout. It has multiple options for regular locks as well as mortise locks. After setting everything up I gave the door a few shoulder shots, kicks & punches to test (I'm a big guy)... it didn't budge an inch! Not to mention both the steel & paint job are very high quality! 5/5Overall this is a surprisingly great product. The only thing missing is hinge protection which is a huge let down. Other than that it is easy to install & extremely sturdy. We'll see how it fairs against an actual break-in.5 out 5 stars
S L
March 22, 2025
This door jamb reinforcement kit should be standard for any entry doors. Excellent kit and cheap insurance against forcing doors!The installation is easy and well detailed and the product is very well made. Highly recommended.
Dave from Calgary
March 4, 2025
When I ordered it I was skeptical that it would even fit, since our garage door is 20 years old and every time I have to replace the deadbolt or door handle it takes far longer than necessary because nothing seems to fit right. But this installed with a minimum of fuss. Its design clearly reinforces the entire door jam because of the overlapping design of the pieces. It took a few minutes to figure it out because the instructions are a little ambiguous and in really small font. But otherwise, once I got it figured out it installed easily. Very good product. Two thumbs up.
SkinnyV
February 23, 2025
Very good and most affordable product of this kind. Very subtle when installed properly. The only negative thing is that can be tricky and involved to install. The statement that it can be installed in minutes is quite misleading. It could if you have the perfect circumstance but most door frame will need to be modified to fit because most door won’t have enough spacing for this to be intalled without preventing the door to close. I was thinking of finding a door mortise jig but they are usually made for the door itself and would not have fit on the jamb. But I hear you all screaming at me "real dude/dudette use a chisel!", and I have no problem pulling out my chisel for this, but it would not have worked for my door and I ended up having to cut a groove using a rotating tool. It wasn’t so bad, but does thake a bit of time to properly do for the full lenght required. It would have been an easier install if the metal plate was just flat and if there wasn’t one if the edge bent at a 90 % angle. But if you go in with the idea that the install won’t be as easy as screwing it on, you shouldn’t be disapointed. You can barely notice it is there. Once the extra groove space will be filled with white caulking, I bet you won’t see it at all. It is very sturdy. People who worry about the thickness lf the metal plate don’t really understand how it work, it would take quite a bit of repeated brute force and prying to go through the metal and pull the very long screw going to the stud. Of course, a thief would just need to break one of the windows around the area but then its a different kind of motovation and most low level thief won’t bother and will move on to an easier target.
Chance H.
January 23, 2025
I used this product to repair a damaged door and jam. The kit fit well, was easy to install, and is sturdy. I honestly believe that the door and jam are stronger than new!
Kim
November 25, 2024
The kit worked well, but it was difficult shaving the door jamb to make more clearance to accomodate the repair kit. I was able to use a router remove mosts of the material, and then a chisel to clean up the job.
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