Instruction: Given a question and the related document, and generate the answer to the question based on the information provided in the document.

Input:
Question: When properly installed against the drywall, besides the thickness of the flange, how flush is the locker with the wall concerning the hinge and lock?
Document: This locking cabinet is more of a locker than a safe but it is still very useful even with its limited space. Installation requires a stud finder, some scrap 2x4 and baseboard trim, a tape measure and a keyhole drywall saw. It took about an hour to put in. I would not recommend installing this on an outside wall of your house due to the need to remove insulation for a proper flush fit.
The stack-on in wall cabinet is OK for the purpose I got it (to keep the kids away from the explosives). It is well built, fits right-inside of a standard wall (proper width and thickness) and covers up small mistakes if you don't get the hole exactly right (there's about a 3/4 in lip around the edge). The shelves are nice and sturdy once installed. The lock is easy to use and solid. Those are the pros.
Second, you may find some surprises in the wall. the drywall guys hung an extra stud to make the corner, and so I had to cut out a piece of the 2X4. Third, the studs were less than perfectly centered. I used a rubber mallet to pound in the locker, but you may need to shim or cut your studs to get the locker to fit. * Locker Not Safe. This is closer to a school or Gym locker than a true safe.
(but I really like the 10 gauge steel)* "ShotLock Shotgun vault" - Not enclosed and doesn't fit I have Ghost Ring Sites installed on my home defense shotgun* "RIFLE RACK - RTD" - Not enclosed and expensive and an over-engineered for my needs; need a simple reliable solution. * "V-Line Closet Vault" - Fully enclosed, expensive and doesn't sit flush against the wall.
i need a metal safe/cabinet to store my rifle.i read all instructions and tried the key locking mechanism...at firs seemed fine , but after more that and hour putting it on th wall in my basement to realize that the lock wasn't functioning properly.... i coudn't lock or unlock it....i returned it and got my refund-refused a replacement....couldn't risk nit again
The packing on this cabinet is barely sufficient. There was some minor dings on the flange, but otherwise my stack-on was in good condition. Installation took me 3 days because my studs were 12" on center, not 14". I had to saw one stud completely off, and put in a support piece. Once it was installed my wife said it was very neatly installed. It's not the most secure way of keeping guns, and it doesn't make up for a safe.
Excellent Gun locker. No problems with damage when shipped. Arrived double boxed with no damage. Installed with no problems at all.
The lock will not work and the flange was bent. Unfortunately I left it in the box for too long and missed the return window. The bent edges was a minor issue, but not being able to open the box with the supplied keys is terrible. In short, as soon as you get it open it up and install it. I will admit that the box was appears solid, but the defect that renders it useless overcomes any positives.
Put it in the right place and nobody will ever know it's there. The keys have a tough time with the lock, but I'm hoping that some use will wear any burs down on the keys. Installation was very easy. Find a gap between the studs, cut out the drywall about 53" vertically and it slips right in. I didn't need to shim the sides at all. As a few others suggested, use better screws to secure it to the studs. The ones in the package strip VERY easily.
After installation, the cabinet sits flush in the wall and does not take up any space in the closet. I am very happy with the product and may consider another for the basement.
Answer: Hi Dirk, The locker is very, very low profile once installed. The edges themselves only raise above the surface of the drywall the thickness of the metal. The hinge is maybe an 1/8th - 1/4 of an inch. Even the the lock mechanism is fairly flush, as I believe it is somewhat countersunk into the door a bit due to the way the door sheetmetal is stamped.