Q: What is the minimum depth cavity that this will fit in? Is the listed 11” depth from the front face or the the depth from the back side of the trim?
The minimum depth (11") requirement is measured from the back of the back or under side of the trim.
Q: Just purchased this amazing product (from you, via Amazon). I forgot to order the one with key-lock. Can the lock mechanism be ordered and added?
A: Key locks are not available on our hatches sold on Amazon. We are able to send out locks by themselves for our customers to install if purchased on the website, or we have the hatches available on our DPI Marine Inc. website with the lock being able to be added on and installed in house at the time of purchase.