DIY Sound Proof Door - AVS Forum
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post #1 of 10 Old 09-10-2013, 05:15 AM - Thread Starter
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Hello:

I would like to build a sound proof door for a cement opening in my room.

The cement opening is w38" x h 81.1" x 7.2" deep. *Please, see pictures included.

The sound proof door will be made of two 1 3/8" HDF boards with 2" padding of rockwool in between.

1. What size should the door be (given the materials and the size of the hole)?
2. What kind of frame (door jamb) should be built for it?
3. Should the door be anchored, instead, directly to the wall?
4. What kind of screws/hardware is needed for this type of REAL heavy door?

Any other suggestion, observations will be greatly appreciated.

Many thanks in advance,
Lorenzo

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post #2 of 10 Old 09-10-2013, 05:28 AM
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You can build a 36" wide door.. But I would rethink the use of rockwool.. you want as much mass as possible

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post #3 of 10 Old 09-10-2013, 05:32 AM - Thread Starter
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Thanks for the reply.

Any ideas of what to use in place of the rockwool?

Lorenzo
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post #4 of 10 Old 09-10-2013, 05:37 AM
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More layers of HDF , dampen the layers with Green Glue.. Plan on 4-5 hinges.

My Basement HT Construction ~ Faster than the speed of Dark

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post #5 of 10 Old 09-10-2013, 07:25 AM
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Some discussion and useful links in my thread around post 300. link


I got my hinges here. link to harwdware source

You will need to figure out how to do your door latch if it is wider than standard. Emtek makes up to 3'' but for a price.

Consider if you will have treatments in the inside of the door as that will make it wider and complicate matters further.

As was said before you want as much damped mass as possible. And a communicating door should add to the efforts.

Don't forget the perimeter seals and automatic drop down seal. Expensive but essential if you want good results. Mine are from Zero International. Here are the auto door bottoms link
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post #6 of 10 Old 09-10-2013, 11:53 AM - Thread Starter
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My 2 biggest questions are:

2. What kind of frame (door jamb) should be built for it?

3. Should the door be anchored, instead, directly to the wall, which is of solid concrete.

Many thanks for the help

Lorenzo
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post #7 of 10 Old 09-10-2013, 12:29 PM
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I don't know about anchoring directly to the concrete. You need a screw that would grab into concrete and fit your hinge. Might be a tall order. Maybe someone else knows.

I have seen plywood recommended for shear strength. I used mdf which was a mistake.
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post #8 of 10 Old 09-10-2013, 01:33 PM
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You can also start with a simple, solid core door and then add more mass to it (layers of MDF) with a decent finish. Strong hinges are a must as has been mentioned. Also, make sure you get a good seal around the door.

You might also benefit from a copy of "Home Recording Studio: Build It Like The Pros" by Rod Gervais. I know you aren't building a studio but his discussion of doors might help you greatly.
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post #9 of 10 Old 01-19-2014, 03:36 PM
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OP - LorFerDez, how did this turn out for you?
(I see you made 3 post since joining, so hopefully you are still viewing AVS ... or maybe not? Last Online: on 10/9/13)

I'll be adding doors to my HT, it's got curtains now, and I'm considering buying vs DIY.

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post #10 of 10 Old 10-03-2014, 05:43 AM
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Quote:
Originally Posted by mtbdudex View Post
OP - LorFerDez, how did this turn out for you?
Bump - as I'm getting quotes for doors now curious how this turned out.
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