Hello,
I am going to hang up a large server cabinet (6U) on the garage wall. The cabinet measures wxdxh 540x450x320mm. It will contain a router and a NAS server. I'm estimating a maximum weight of 25 kg. The wall consists of some sort of shower wall/formply that measures 9 mm and then there's a small gap of about 3 mm and then a gypsum board. I tried with 100 mm long screws, but they didn't hold and the cabinet came off the wall. The wall measures about 110 mm, then comes the outer panel. I don't know if there's anything behind the gypsum board. What kind of plug would you use? Drywall anchor? What type? Another type of plug?
I am going to hang up a large server cabinet (6U) on the garage wall. The cabinet measures wxdxh 540x450x320mm. It will contain a router and a NAS server. I'm estimating a maximum weight of 25 kg. The wall consists of some sort of shower wall/formply that measures 9 mm and then there's a small gap of about 3 mm and then a gypsum board. I tried with 100 mm long screws, but they didn't hold and the cabinet came off the wall. The wall measures about 110 mm, then comes the outer panel. I don't know if there's anything behind the gypsum board. What kind of plug would you use? Drywall anchor? What type? Another type of plug?
With such a large cabinet that is only 320 mm high, there will be significant pulling forces on the top mounts. I assume that's where the cabinet has come loose, right? You can do it in several ways, e.g., use many fittings at the top or first attach a wooden panel to the wall, which you then attach the cabinet to. If the cabinet is meant to be mounted against the ceiling (which I don't think), you can also attach it to the ceiling.
I believe the method with an additional wooden panel would be the best. It doesn't need to be wider than the cabinet but can be, but above all, it must be higher and extend above the cabinet. The further up (above the cabinet) the top mounting points are, the less force they are subjected to. The panel doesn't need to be extremely rigid, but the thicker and stiffer, the better. An OSB or chipboard of 22 mm is more than enough.
Regarding the fittings, I would try using Molly plugs/metal expanders or drywall anchors. If the wooden panel is an option for you, it can be glued to the wall, but that would be a permanent solution in that case.
An angle bracket downwards or upwards would also relieve the forces considerably, but it must also be attached to something. Is the ceiling suitable for attaching things? What kind of studs do you have in the ceiling and walls? Can you attach the cabinet to at least one stud?
I believe the method with an additional wooden panel would be the best. It doesn't need to be wider than the cabinet but can be, but above all, it must be higher and extend above the cabinet. The further up (above the cabinet) the top mounting points are, the less force they are subjected to. The panel doesn't need to be extremely rigid, but the thicker and stiffer, the better. An OSB or chipboard of 22 mm is more than enough.
Regarding the fittings, I would try using Molly plugs/metal expanders or drywall anchors. If the wooden panel is an option for you, it can be glued to the wall, but that would be a permanent solution in that case.
An angle bracket downwards or upwards would also relieve the forces considerably, but it must also be attached to something. Is the ceiling suitable for attaching things? What kind of studs do you have in the ceiling and walls? Can you attach the cabinet to at least one stud?
Big thanks for all the tips! To avoid drilling larger holes and try the easiest option, I changed the screw to one with threading all the way out. I had missed this in the rush to finish before the dinner guests arrived. These screws held much better since, of course, the formply is the load-bearing part. I don't think it will hold very large weights, but it should handle a router and a smaller NAS. Big thanks again, and surely a solution with a board behind would have handled the weight better.
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