Hi,
I have just installed some small Ikea Bestå wall cabinets on a concrete wall with moldings underneath that they rest on, then I have driven fairly strong screws through the mounting points at the top, according to the instructions.
Have I created a lever, by having the moldings under the cabinets, which will now focus the force outward on the upper screws instead of letting all the weight fall downward, when I, for example, fill the cabinet with heavy items or place a TV on the cabinet?
Should I remove the molding and let the 'strong' screws take all the weight?
(The cabinet is 120cm x 38 x 40cm with 3 screws at the top edge)
Thanks in advance,
Petter.
I have just installed some small Ikea Bestå wall cabinets on a concrete wall with moldings underneath that they rest on, then I have driven fairly strong screws through the mounting points at the top, according to the instructions.
Have I created a lever, by having the moldings under the cabinets, which will now focus the force outward on the upper screws instead of letting all the weight fall downward, when I, for example, fill the cabinet with heavy items or place a TV on the cabinet?
Should I remove the molding and let the 'strong' screws take all the weight?
(The cabinet is 120cm x 38 x 40cm with 3 screws at the top edge)
Thanks in advance,
Petter.
But is my concern justified, that I am now forcing the pressure to pull the upper screws outward when I place something really heavy there, instead of directing the force downward? Screws can handle much more load 90° from their direction.
I'm just worried that the upper screws will come loose with the weight of a TV. Or in reality, will that not happen?
[thank you for the answer sponken]
I'm just worried that the upper screws will come loose with the weight of a TV. Or in reality, will that not happen?
[thank you for the answer sponken]
ok, I understand the idea, but the screws probably withstand more than you might imagine. The cabinet will break first...
We have three cabinets with three doors each, so the height is about 180cm, I think. In these cabinets, there are everything from records, books, about 50 liters of whiskey, etc. The cabinets themselves weigh a ton... In our case, the wall is a solid wooden wall (the house is 100 years old), so it is attached to the wall with internal angles and then a screw in each internal corner, that is, four screws per cabinet. The "screws" I used are about 15cm long and maybe 6mm thick. The head is a nut of 8mm. I guess it's called something other than a screw, but you get the principle.
The cabinets won't fall because of excessive load, but the cabinet will break first...
We have three cabinets with three doors each, so the height is about 180cm, I think. In these cabinets, there are everything from records, books, about 50 liters of whiskey, etc. The cabinets themselves weigh a ton... In our case, the wall is a solid wooden wall (the house is 100 years old), so it is attached to the wall with internal angles and then a screw in each internal corner, that is, four screws per cabinet. The "screws" I used are about 15cm long and maybe 6mm thick. The head is a nut of 8mm. I guess it's called something other than a screw, but you get the principle.
The cabinets won't fall because of excessive load, but the cabinet will break first...
My wall is concrete and I use plastic plugs (8mm screws, so they still hold quite a lot), but with plugs, the screws don't bite the same way as if it were a wooden wall. So I understand in your case that it holds like a rock.
Knowing that you have 50L whiskey doesn't help my ego either
I have 50CL left of a half-decent blend... let's hope Santa comes this year.
Knowing that you have 50L whiskey doesn't help my ego either
I have 50CL left of a half-decent blend... let's hope Santa comes this year.
Concrete is indeed a good material for heavy loads.
If it eases your mind, you can see here what kind of load it can approximately handle:
http://www.essve.com/templates/EframePage.aspx?id=3554
Now, this is a somewhat fancy plug, if you have the simplest standard plug, it obviously won't handle as much, but my guess is at least half the force.
1.0 kN = 100 kg, but you probably already knew that ...
If it eases your mind, you can see here what kind of load it can approximately handle:
http://www.essve.com/templates/EframePage.aspx?id=3554
Now, this is a somewhat fancy plug, if you have the simplest standard plug, it obviously won't handle as much, but my guess is at least half the force.
1.0 kN = 100 kg, but you probably already knew that ...
have not experienced mounting a support strip under the cabinets and thereby mean that this is not necessary. it's as you say that the screws located at the top of the cabinets should take up the weight that occurs. the cabinet is then pressed against the wall and the screws' task is to hold the weight in a downward direction. try screwing up a similar screw with some type of handle on a wall and load it with your own body weight to see what they can withstand if you're unsure
Really good question. Good thinking there... In my head, it probably works as you say. But if you load the screws and the support list equally, there's no problem. However, if the cabinet "rests" on the list, the screws up there should get more outward force... Hang a bit on the top cabinet and see how it feels...