Shoutout to the $12 corner brace kit from the hardware store that saved my sagging desk
My desk is one of those cheap particle board tops from a big box store and after about 8 months the middle started dipping bad under my two monitors. I could see maybe half an inch of sag when I put a level across it, and my keyboard was starting to slide toward the front. I almost dropped $150 on a whole new butcher block top, but a guy at the store in Boise told me to grab a $12 corner brace kit and screw it under the back edge first. Took me maybe 20 minutes with a drill and now the top is dead flat again, no flex at all when I lean on it. For 12 bucks I basically got a new desk and I'm kind of annoyed I didn't do it sooner. Has anyone braced a desk like this on the front edge too, or does that just get in the way of your legs?
Man, hate to burst your bubble but a corner brace under the back edge is not really what fixed the sag. Those kits are meant to hold corners at 90 degrees, not flatten a bowed top. Particle board that dipped half an inch is already crushed inside, so the brace is mostly just stopping it from getting worse. What you're feeling when you lean on it is the brace holding the back edge down, not the board magically going flat again. If it were me I'd check with a level in a month or two, because that dip usually creeps back. Still a solid fix for 12 bucks though.