Here are tips to preserve your wooden bunk beds from damage. First, coat your wooden bunk beds with coating that keeps it dry during any spills from your kids or pets. Then, reinforce the bolts and nuts every two years, by screwing them back in tighter than before. This ensures that the bunk bed slats will stay in place and not fall through. If that happens, people can get hurt when the bunk bed collapses. It has happened to me the past two years because I bought a cheap bed that was made locally. I wouldn’t recommend doing that at all.