Hi everyone, I just built this frame for my stand and want to attach it with strong magnets so I can take off the entire thing to work on the sump. Have any of you done this? I think they’re earth magnets. I have some questions for those of you who have done this. How strong and how many did you use? This is a 36”x39” spruce frame I’ll eventually put doors or a screen on in the middle. Do these magnets rust? Did you just use a router bit to make the holes for them? Anything else I should be aware of? I appreciate any help!!!