Plug or screw directly? Particleboard, TV mount

[MathiasS]

Wood screw! I actually don't understand why many even consider a Molly.

 

[El-Löken66]

Planning to install a handle outside the shower and support by the toilet for the father-in-law, chipboard walls and no idea if I can hit studs...
Will just screws hold, or should I use something like Molly?

You can probably figure out where the studs are.

How thick are the chipboards, is there nothing else behind them?

Screw one side into a stud. First option. Otherwise, Molly. Check what it can handle. For example, 50 kg.

If you can then distribute the weight in 6 places = 300 kg = ok.

A bunch of screws in chipboard is also strong.

Perhaps you can then attach a stud behind with about ten screws and then screw into this.

Don't you have a stud finder? You can knock and do sample tests.

 

[El-Löken66]

Wood screw! I actually don't understand why many people even consider a Molly.

Molla is over the situation with plaster. A damp particle board inside also doesn't hold much strength. You should screw into the joist.

 

[MathiasS]

A bunch of screws in particle board is also strong.

Maybe you can then attach a beam behind with ten or so screws and then screw into this.

But come on now. Here, the problem is clearly in black and white - there is a complete lack of insight into what a screw can hold. If the whole guy hangs on this handle, the load is 100kg. If he manages to deliver a flying tackle on the handle, he might manage to double the load to 200kg. But let's assume 300kg, you never know what Nino does with the handle when no one is watching.

The handle is probably attached with three or six screws.

Each 6mm wood screw holds, conservatively, 150kg in every direction (tension and shear) in a regular particle board.

That’s 450kg. Or 900kg, depending on how the handle is designed.

 

[MathiasS]

Molla is over the situation with plasterboard. A moist chipboard inside also doesn't hold much force. You should write in rule.

Here it's about chipboard, not plasterboard. I question why people use Molly and other types of plaster anchors in wooden boards. Better to use the right screw and learn to tighten just enough.

 

[El-Löken66]

But come on now. The problem is clearly black and white here - there is a complete lack of understanding of what a screw can hold. If the whole guy is hanging from this handle, the load is 100kg. If he manages to tackle the handle with a flying leap, he might manage to double the load to 200kg. But let's assume 300kg, you never know what Nino does with the handle when no one is watching.

The handle is probably fastened with three or six screws.

Each 6mm wood screw holds, at the low end, 150kg in all directions (tension and shear) in an ordinary particleboard.

That’s 450kg. Or 900kg, depending on how the handle is designed.

Yes, in a new and nice particleboard, everything holds well. While old damp ones snap like tinder. Have you screwed into such a board? And then hung 900 kilos?

Simple rules.

Screw in a stud.
Don't screw into electrical wires.
Not even empty pipes.

It should last 20 to 30 years.

A man's life depends on your commitment.

But on-site, I probably could have judged the same. But not in the forum.

 

[MathiasS]

If you have a bad board, you can use through m10 bolts and nuts and it still won't hold, so how was it relevant here?

If you can screw into a stud, you should of course do it. But skip Molly and other products made for drywall.

 

[nino]

Come on now. The problem is clearly black and white here - there's a complete lack of understanding of what a screw can withstand. If the whole guy hangs on this handle, the load is 100kg. If he manages to body-slam the handle, he might double the load to 200kg. But let's assume 300kg, you never know what Nino does with the handle when no one is watching.

The handle is probably fastened with three or six screws.

Each 6mm wood screw can withstand at least 150kg in all directions (tension and shear) in a regular chipboard.

That makes 450kg. Or 900kg, depending on how the handle is designed.

I'm going with regular wood screws, wondering if 6mm will fit. Regular VSB or spax screws then?

 

[El-Löken66]

I'm using regular wood screws, wondering if 6mm will go in.
Regular VSB or spax screws then?

Yes, regular wood screws into the stud.
Post a picture of what you're attaching but you probably shouldn't have a countersunk head but a straight one instead.
Use the largest possible that fits.

If you don't care to read instructions.

You'll get a sense of how it's holding when you've screwed it in. If there's resistance at the end, it's probably okay. If the screw keeps turning, you've likely failed.

You have a long bar there, so make sure it supports at least 300 kilos. In general, it's not a problem. Otherwise, refer to the above.

 

[nino]

Wood screw! I actually don't understand why many even consider a Molly.

Should I drill with 3mm for a 6mm screw, or should I use a smaller drill?

 

[El-Löken66]

Should I drill with 3mm for a 6mm screw or should I use a smaller drill?

The drill is the same size as the inner diameter of the thread or slightly smaller. Just hold it up, and you can see with the eye. But if it's really chipboard, you can screw directly into it. But the board may crack if you don't drill and hit the side.

 

[nino]

The rule is not there, it's particle board.

 

[El-Löken66]

The stud is not there, it's chipboard

There is a stud. Chipboard cannot float in the air.

 

[Argastesnickaren]

Molla is over the position to plaster. A damp chipboard inside also does not hold much strength. You should write in rule.

If you have so much moisture in the chipboards in a toilet that a handle falls down, then the handle is not the biggest concern

 

[nino]

There is a rule. Chipboard cannot float in the air.

Yes, it is floating in the air.

I did write that there is no rule THERE, meaning where I need to fasten the armrest.
One rule is right at the edge of the toilet and the other is 60cm away, which is too far away.