I have a space in one of our closets that would make a great spot for a lay-down gun chest. The space is at the back of a closet that mirrors our roof line, so the angle of the roof comes towards you as you walk in the closet. Now the space is basically wasted. We have a kid coming and the wife wants all firearms "secured". First thought was buy a safe, well the one I want isn't in the budget, which lead me down the path of figuring out some sort of plan to build a lockable chest out of wood.
Any thoughts on what I should consider? Off the top of my head, it needs to lock (and open quickly) and the closet gets hot as heck in the summer so insulation of some sort would be nice. I am storing rifles and shotguns in cases and probably my ammo cache.