Author Topic: How much weight can you hang on studs?  (Read 5102 times)

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Offline JeremyH.

  • Posts: 196
How much weight can you hang on studs?
« on: November 17, 2017, 05:51 PM »
I have a project idea for some different kinds of speakers, and I want to know what weight can I hang on studs? They are large enough that they should easily reach 3 studs, and can attach top and bottom.

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Offline antss

  • Posts: 1453
Re: How much weight can you hang on studs?
« Reply #1 on: November 17, 2017, 05:56 PM »
Depends on the species and size.  2x4 or 2x6?   SYP, SPF, whitewood or engineered ?

I'd be more worried that your speaker boxes are stout enough to withstand the forces before I worried about the studs failing.

Offline Peter Halle

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Re: How much weight can you hang on studs?
« Reply #2 on: November 17, 2017, 06:21 PM »
I would also add that how they will be attached to the studs matters.

Peter

Offline JeremyH.

  • Posts: 196
Re: How much weight can you hang on studs?
« Reply #3 on: November 17, 2017, 06:33 PM »
Lowest common denominator, because I won't be choosing where they go. 2x4, cheap.

Offline Sparktrician

  • Posts: 3675
Re: How much weight can you hang on studs?
« Reply #4 on: November 17, 2017, 07:43 PM »
Think GRK RSS screws.  You could hang the front end of a small-block Chevy off them. 
- Willy -

 "Remember, a chip on the shoulder is a sure sign of wood higher up." - Brigham Young

Offline kevinculle

  • Posts: 236
Re: How much weight can you hang on studs?
« Reply #5 on: November 17, 2017, 08:43 PM »
Think about a tall 36" wide kitchen wall cabinet filled with dishes...could easily weight a couple hundred pounds loaded and hangs on 3 studs.  Unless these are stadium sized speakers you should have no worries.

Offline antss

  • Posts: 1453
Re: How much weight can you hang on studs?
« Reply #6 on: November 17, 2017, 09:11 PM »
Except the wall cabinet was designed to be hung on the wall.   The speaker may or may not be designed for that.  And many aren't.

The wall cabinet will likely have the weight more evenly distributed than the speaker which will have most of the weight concentrated on or near the front face.

The limiting factor will be the speaker box construction.  Better make sure the backs are solid and that they are well connected to the sides.  Internal bracing is also a good idea.

Offline mwildt

  • Posts: 421
Re: How much weight can you hang on studs?
« Reply #7 on: November 17, 2017, 09:38 PM »
Another concern is that the speaker, if it holds a reasonable bass woofer, could end up using the whole wall as an extension. The vibration alone could cause damage as well. Not to mention making the sound quite distorted.

Just something to think about as well.

Offline Cheese

  • Posts: 5156
Re: How much weight can you hang on studs?
« Reply #8 on: November 17, 2017, 09:43 PM »
The elephant in the room...how much do these speakers weigh?

All other exercises in yay or nay are just mental masturbation.

Offline antss

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Re: How much weight can you hang on studs?
« Reply #9 on: November 17, 2017, 09:48 PM »
 [eek]

Offline Cheese

  • Posts: 5156
Re: How much weight can you hang on studs?
« Reply #10 on: November 17, 2017, 09:54 PM »
[eek]

What am I missing here? Weight...load distribution...lever arm...

Offline antss

  • Posts: 1453
Re: How much weight can you hang on studs?
« Reply #11 on: November 18, 2017, 11:14 AM »
the exercise  [wink]

Offline JeremyH.

  • Posts: 196
Re: How much weight can you hang on studs?
« Reply #12 on: November 21, 2017, 11:44 PM »
Weight depends on what I can get away with to a large factor. These are "different" speakers. What will be connected to the wall will be distributed more like a cabinet, 4 or 6 points.

Think like hanging butcher block that's around 5x4ft. Being specific is worthless because it's universal. I just need an approximate of how much weight say, a grk screw can take in a stud.

Offline Cheese

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Re: How much weight can you hang on studs?
« Reply #13 on: November 22, 2017, 12:03 AM »
Weight depends on what I can get away with to a large factor. These are "different" speakers. What will be connected to the wall will be distributed more like a cabinet, 4 or 6 points.

Think like hanging butcher block that's around 5x4ft. Being specific is worthless because it's universal. I just need an approximate of how much weight say, a grk screw can take in a stud.

We're here to help but this sounds more like a Ouija board to me.......

Here ya go...look at the website and they will help you conceal your secret.

http://www.grkfasteners.com/tech-data/specs

As an aside, I've listened to Magnepans, Martin Logans and Bowers & Wilkins, but have never listened to a butcher block. But hey, I'm game...
« Last Edit: November 22, 2017, 12:16 AM by Cheese »

Offline Dane

  • Posts: 354
Re: How much weight can you hang on studs?
« Reply #14 on: November 22, 2017, 12:22 AM »
You’re not going to hang a set of speakers that are going to break the studs.  Proper fasteners, properly spaced, can hold up just about anything you could lift up there.  In a ballon framed house, the studs are holding up the entire floor; decks can be fastened into studs from the exterior to bear the half of the weight of the deck...Trick is to use the proper fastener and use
it right. 

Offline Naildrivingman

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Re: How much weight can you hang on studs?
« Reply #15 on: November 22, 2017, 06:52 AM »
All physical specs of wood and hardware aside your weak points are as follows:
1. Speaker box construction (can it rack under its own weight, is it stoutly built enough to withstand point loading?)
2. Method of attachment of speaker to the wall (Is it hung like a typical wall cabinet, is it resting on a ledger...?)
3. Substrate supporting the load
4. Fastener type used

Personally, I would use the GRK family and disregard concerns over #s 3&4.  What should be the determinant factor is can the speaker “hang”.  You reference a 5’x4’ butcher block. To me, that suggests a large footprint, but small projection from the wall.  If this is accurate, then the shear value of fasteners selected is what should drive the bus, because gravity is primarily pulling straight down.  If the speaker(s) project from the wall, there are other factors to consider.

The points about sound transmission across and through the wall seem very valid to me, but I’m not a HiFi Guy. (Yes, I’m old...most do not use terms like HiFi anymore)  [unsure]
Dance with who brung ya...

Offline jimbo51

  • Posts: 437
Re: How much weight can you hang on studs?
« Reply #16 on: November 22, 2017, 07:21 AM »
What kind of issues are there with hanging objects on walls with metal studs?

A recent Fine Homebuilding article discussed the pros and cons of metal framing. A major issue with exterior metal studs is thermal bridging. I do not recall any discussion of wood exterior studs and metal interior studs which would address the thermal bridging problem. I do wonder about any issues homeowners have when hanging heavy objects on walls framed with metal studs.

Are metal studs significantly more difficult to drive screws into? Since the screw is held into the metal stud by only a small area of contact, is there any more chance of failure if the screws are poorly installed?

Just curious.

Offline Peter Halle

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Re: How much weight can you hang on studs?
« Reply #17 on: November 22, 2017, 07:28 AM »
There is a greater chance of failure with metal studs.  Many moons ago when I worked for a retailer, as we remodeled or built new stores there was a lot of wooden blocking installed in metal stud walls which were constructed of structural metal studs.  All the walls designed to hold the tvs were engineered and stamped.  Seismic zone walls might as well have been solid wood.

Peter

Offline rst

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Re: How much weight can you hang on studs?
« Reply #18 on: November 22, 2017, 07:30 AM »
Generally metal studs are 22 ga light weight steel.  The screw used in these are the fine thread.  I built my shed with metal studding and siding, mostly because I could justify buying a Milwaukee bandmill and Kett shears...spent about what I would have on buying a commercially available wooden shed.  This also reduced the weight of the shed to make it more easily moved.  I would not hang anything of the nature of a TV on this type construction without putting wooden backing in the studding prior to closing up which is done is restroom and any where that weight needs to be attached to steel frame walls.

Offline Cheese

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Re: How much weight can you hang on studs?
« Reply #19 on: November 22, 2017, 10:34 AM »
Here's an earlier thread, which goes into a lot of detail on attaching shelving to metal studs.

http://festoolownersgroup.com/home-improvement-other-projects/questions-about-shelving-tracks-in-drywall/msg443312/#msg443312

Offline JeremyH.

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Re: How much weight can you hang on studs?
« Reply #20 on: January 25, 2018, 07:01 PM »
The GRK appear like they can easily hold the weight. I don't think there are going to be any problems. Now the question has come down to designing what where and how the speaker rests on the wall.

I'm thinking that some minimal 1/8" to 1/4" pads that float the 5x4ft off the wall just a touch, and provide a wider compression from drywall to to stud. Now do I simply make holes big enough for a GRK screw, and then put in plugs? HMMM Maybe metal plugs that'll look sexy.

Thanks for all the replies.