For the SF-SP (Matte Black) Simpled Smart Lock, the dimensions are 300 x 43 x 24 mm.
Please note that stainless steel plates will soon be available if there are exposed holes from the removal of the previous lock.
We highly recommend sharing pictures of your door with us, as this is an easy and efficient way to determine the most suitable smart lock for your needs. In many cases, we can offer better alternative solutions.