I have been tasked with building a hinged panel with concealed hardware for access to hvac equipment in an attic as well as air exchange for the same gear. The shop I am subbing for supplied me with three Sugatsune 3D hinges (think small Tectus hinges, very nice) and for the latch a couple of fairly substantial magnetic touch latches. Unfortunately the touch latches are not strong enough to keep the panel up and we need to rethink that before proceeding. The panel will be about 37" x 42" of 3/4" mdf and I estimate will weigh about 25 lbs once a wood grille isinstalled in about 1/3 of its area. I feel it should have some type of positive catch as there is a possibility for injury if the panel drops free unexpectedly. Here is one possibility https://www.leevalley.com/en-us/shop...c-secret-latch. Any comments or suggestions?