
I wanted an internal lock for the door leading to the lower level. The Berlin Palace was perfect. Very easy to install, looks good and provides the required security. I also installed one on the outside door. It took a bit of chiseling to get the lock case to fit properly, but otherwise the installation was very easy. Just follow the instructions. I traced the body on the door frame and just used a flat head screwdriver and hammer to score the wood and it works great.

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