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Building my DIY Acoustic panel, are the wooden frames necessary?
Old 10th April 2019
  #1
Here for the gear
 

Building my DIY Acoustic panel, are the wooden frames necessary?

Hi guys, i’m very new to this and i was just wondering.. i’ve done my research on tutorials in making a DIY acoustic panel. All of them described the role of the rockwoll and the fabric used, but never the frame.

Now, i’m trying to make my own acoustic panel, and i was just wondering if using the frame itself is really all that necessary.

Can’t i just use a piece of 60cmx120cmx5cm rockwoll with a density of 100kg/m3 and wrap it in some burlap then just glue it on to the desired wall like an acoustic foam? I mean it WOULD cut down the budget. Or am i missing something?

Again i’m very new to acoustic treatments and everything so please be gentle guys hehe thanks
Old 10th April 2019
  #2
the frame provides
1) stiffness and allows you to wrap the burlap tightly for a nice aesthetic.
2) rigidity so it makes attaching to the wall easier.
3) the ability to have some offset to the wall - recommended 4 inches if space is available.

You can probably get away with not using it, but the frame material is a small fraction of total cost of your acoustic panel.
The added benefits out weighs the cost.

Therefore, add framing material.
Old 10th April 2019
  #3
Gear Guru
 
Brent Hahn's Avatar
 

Weird thing -- just happened to snap a photo of a bunch of panel edges this morning, never mind why.

These are done with OC703, I've never used rockwool. The wood is 1/4" X 2" pine moulding, weighs next to nothing. Glued to the panel edges with 3M Super77.

Notice the nice square edges and almost-crisp corners. Not perfect, but not bad. And you can hang these on a drywall or plaster wall using just 2 finishing nails under the top of the frame (through the fabric) and a third nail under the bottom center of the panel.
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Old 12th April 2019
  #4
Here for the gear
 

Alright well thanks alot guys for the input! I really appreciate it
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