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zeurydice OP t1_ixcsr7y wrote

Reply to comment by DogRiverRoad in How to mount something safely on a wall of unknown material? by zeurydice

Thanks. What would be an appropriate anchor? Ordinarily for masonry I would use something like Tapcon screws, but this seems like it might be too brittle. Do you think the lag screw + lag shield approach would be appropriate?

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bobbertmiller t1_ixcuhou wrote

Are expanding plastic wall anchor ls not a thing in the us? This is my go-to for everything, everywhere.

https://www.amazon.com/dp/B08H3XRZWV/

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SnakeJG t1_ixcvxo4 wrote

Wow, that is an impressive universal wall anchor.

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dsac t1_ixcxib7 wrote

yeah, most of the ones i see are just plain-jane, that one's pinky-extending fancy

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Migacz112 t1_ixd27op wrote

Fischer is the shit when it comes to wall anchors

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ride_whenever t1_ixe33jr wrote

Fuck yeah, we got some of their epoxy wall anchors, that stuff is INSANE

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Z-W-A-N-D t1_ixdxtae wrote

I love them. €10 for a pack of 50, usable in nearly every kind of wall. My go to.

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zeurydice OP t1_ixd2zta wrote

These are really cool. We of course have plastic wall anchors here, but I've never seen a fancy multi-use anchor like this. I'm wary about how much weight it would hold, though, especially since the Amazon listing doesn't seem to claim anything in that regard.

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calcium t1_ixd8zu7 wrote

I did some digging on the manufacturers website and for their metric products I found the following PDF that calls out their strength in kN of holding for various surfaces:

https://fiproductmedia.azureedge.net/media/Load%20Tables/Load%20Tables%20fischer/LT_01_DUOPOWER_SEN_AIP_V1.pdf

A quarter inch is 6.35mm, so if you’re using say a 6x30 in gypsum fiberboard it would have a holding of 0.33kN or about 75lbs, which is generally what you’d expect from a plastic toggle.

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Samothrace_ t1_ixdb0zl wrote

There are tons of options at At Home Depot or Lowes. They usually have the maximum sheer load displayed on the packaging.

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taizzle71 t1_ixdo2ui wrote

I used to Install tvs on walls and use these masonry anchors all the time. Actually it comes with the tv mount. Not sure of the exact strength of these but after screwing in 4 we can hang on it no problem.

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bobbertmiller t1_ixdkbuj wrote

I was just linking the German stuff because I didn't know what's common where you live. I really like Fischer and have used them exclusively now (and they are easy to come by, me being in Germany).

/u/calcium has linked the chart already, but for gyspum board you're basically limited by the material. I'd use a 6x30 or 6x50 for a single sheet. I prefer more holes to bigger ones in Gypsum, because you need to spread the load.

If you have a solid wall, even a shitty porous one (had old, loose, sandstone once) you want a long dowel so the load is as far INSIDE the material as possible. That way, you won't blow out the surface. Sometimes you have to lock the dowel in position, so it doesn't rotate before it starts expanding.

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Z-W-A-N-D t1_ixdxhl7 wrote

I am currently using identical anchors of 8mm for a wall TV mount. I'm a furniture/cabinet maker and I have also worked as a carpenters helper for a long time. I usually test stuff like this so I just hung on the extended arm for a bit. Didn't move a bit. Used 3 of those plugs. They're great. I used them in a brick wall btw.

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Z-W-A-N-D t1_ixdzreq wrote

Also, I have these in 10mm diameter, I think they're 45mm long and they hold 215kg in concrete, 145 in brick, 25kg in hollow bricks, 20kg in bubble concrete and 15kg in gypsum boards.

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LateralThinkerer t1_ixcwval wrote

I seem to have a vast assortment of anchors for different applications (toggle-bolts/drywall "snap-skru"s/expansions/grip-fast etc. etc.). Do these Fischers really do all of them that well?

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NotElizaHenry t1_ixd2s4w wrote

I feel like you only need-need specialty anchors when you’re hanging something suuuper heavy (cabinets, huge mirror) and the rest of the time you can get away with these red and grey guys. They’re what I use for all sorts of things and I’ve never had a problem.

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Fever_Raygun t1_ixd5vau wrote

Generally yes but for non-standard thickness walls they don’t work quite as well as a Molly/toggle

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DogRiverRoad t1_ixd1dt5 wrote

This is what you want to use. Or something like it.

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kuncol02 t1_ixd3cqb wrote

No. That is what you want to use and only that. They are so much better than normal plastic wall anchors that it's not even competition.

Maybe not in drywall. I feel like there you would be better with more specialized stuff.

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DogRiverRoad t1_ixd5rlu wrote

Its a compressive hollow wall anchor. There is nothing exactly special about it. There are many wall anchors with similar or superior performance. I agree that there are wall anchors that are much worse, but that does not mean the a duopower anchor is the only acceptable one to use.

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bobbertmiller t1_ixdhtp7 wrote

It's really a multi purpose anchor. It'll expand differently, depending on the cavities. It can either just spread in a solid wall or it can bunch up in a cavity.

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AchillesDev t1_ixd4cck wrote

Those don't seem like they're made for plaster and lath construction, though.

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Raul_McCai t1_ixdu54v wrote

> Are expanding plastic wall anchor ls not a thing in the us? For a pot Rack? That'd be a big error

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parkscon t1_ixe0krc wrote

These are the only wall plugs I use now. I never use the ones supplied with anything.

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Raul_McCai t1_ixdu21r wrote

> What would be an appropriate anchor? Depends on the weight of the final pot racks pots and all.

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GreenMonster81 t1_ixel2d6 wrote

I hope someone gave you a masonry anchor based on weight. The item you’re hanging will determine it.

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