My kids bed broke. Apparently jumping on it caused the thin material on the connected surface to split. The special furniture side nut things just tore right through.
https://photos.app.goo.gl/oc8fEiHFfExwxHX86
Any suggestions on how to fix this?
UPDATE I decided Jasen's answer was best but it was still too complicated for me.
Here is what I did
Maybe good enough?
Best Answer
That looks pretty busted up, and I'm guessing you want to fix it, and making it stronger than it was it more inportant than making it look good as new.
MDF and chipboard are weak in edge-grain, so for durable connections screw into (and preferable through) the faces not into the edges.
What you do is get some 20mm x 2mm aluminum angle that's as long as the join, and some chip-board screws.
Place the aluminium inside the failed corner, drill small holes (eg 1/16" or 1.5mm) through the "wood" into (and through) the aluminium then screw through that hole. do that though both pieces in every 2" or so along the join.
There'll be sharp screw points through the aluminium, but chripboard screws are hard steel, so if you bend them a bit you can break them off fairly easily (eg using pliers)