Looking for a method to prevent the joints from opening up during humid summer months, which usually prevents the doors from closing. In the past I have glued and clamped them but this lasts only a few years. I've thought about drilling in from the door edge and inserting long screws but I've been told this will not hold either because the screws will be running in the same direction as the grain. If anyone has resolved this problem I'd love hearing about it. Thanks.