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post #121 of 132 Old 09-23-2013, 09:47 AM
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Any consensus? I'm looking to put in a DIY door and was hoping there would be some consensus for a DIY door which stops LFE
The 3 sheets of 3/4" MDF w/ GG seems very doable and relatively inexpensive - and had one happy customer
Any input?
Looking for something under $300 as long as it will work (even at low frequencies)
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post #122 of 132 Old 09-23-2013, 04:45 PM
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You would need to have a lumber frame such as Maple, glued around the MDF, otherwise the hinge screws wouldn't hold in the edge given the weight of 3 layers of MDF.

Winterfell theatre build - working title
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post #123 of 132 Old 01-19-2014, 03:54 PM
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I've seen a lot of discussion, but some lack of pictures to see the results......post picts please those who have these in their HT.
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post #124 of 132 Old 08-20-2014, 01:38 AM
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Trying to resurrect this thread a bit. Anyone have recommendations for a sound isolating exterior entry door? The HT will have an exterior entry door for ease of getting stuff in and out. I'm thinking about using a steel commercial door and then throwing on a couple layers of MDF on the interior surface with GG in-between. Seals all around as well of course.

Commercial steel exit doors are expensive though The cheapest one at Home Depot is almost $500.
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post #125 of 132 Old 08-20-2014, 03:17 PM
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Not at a $300 to $500 price point. Simply isn't going to happen.

Dennis Erskine CFI, CFII, MEI
Architectural Acoustics
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Certified Home Theater Designer
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post #126 of 132 Old 08-20-2014, 06:39 PM
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Quote:
Originally Posted by video1 View Post
Trying to resurrect this thread a bit. Anyone have recommendations for a sound isolating exterior entry door? The HT will have an exterior entry door for ease of getting stuff in and out. I'm thinking about using a steel commercial door and then throwing on a couple layers of MDF on the interior surface with GG in-between. Seals all around as well of course.

Commercial steel exit doors are expensive though The cheapest one at Home Depot is almost $500.
Resurrection of this thread would be good! I posted #120 almost 2 years ago, only 5 posts back, and didn't get a response...if Dennis or Ted (or anyone else...) had the time, I'd love to hear your comments and any suggestions on my door design.

A common myth is that HD is the cheapest place to buy anything! I recently bought doors for a job; HD $120 each, my "real" lumber yard - $92, same door. There are companies that specialise in commercial steel doors, and who will customize the door for your purposes for locksets, hinges and seals, not to mention height. They have the tools to do it! If you don't need it fire rated, you can save money by not having the UL label riveted on, but same door! $500 sounds expensive.

Winterfell theatre build - working title
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post #127 of 132 Old 08-20-2014, 07:54 PM
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We have Homewood Doors nearby. I will ask them about their steel entry doors. I figure they've got to be cheaper than Home Depot. A commercial door is at least $500. Alternatively I could get a Masonite flush trimmed entry door. These even come in a 42" width. The problem is none are soundproof. I would need to add multiple layers of MDF to the door and beef up the hinges.


Quote:
Originally Posted by just jim View Post
Resurrection of this thread would be good! I posted #120 almost 2 years ago, only 5 posts back, and didn't get a response...if Dennis or Ted (or anyone else...) had the time, I'd love to hear your comments and any suggestions on my door design.

A common myth is that HD is the cheapest place to buy anything! I recently bought doors for a job; HD $120 each, my "real" lumber yard - $92, same door. There are companies that specialise in commercial steel doors, and who will customize the door for your purposes for locksets, hinges and seals, not to mention height. They have the tools to do it! If you don't need it fire rated, you can save money by not having the UL label riveted on, but same door! $500 sounds expensive.
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post #128 of 132 Old 08-20-2014, 07:55 PM
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Quote:
Originally Posted by Dennis Erskine View Post
Not at a $300 to $500 price point. Simply isn't going to happen.
But is there a relatively affordable door that DIYers can modify somehow to make it acceptable for HT use?

Steel entry door with a couple of layers of MDF screwed into place?
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post #129 of 132 Old 08-21-2014, 05:07 AM
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Quote:
Originally Posted by video1 View Post
We have Homewood Doors nearby. I will ask them about their steel entry doors. I figure they've got to be cheaper than Home Depot. A commercial door is at least $500. Alternatively I could get a Masonite flush trimmed entry door. These even come in a 42" width. The problem is none are soundproof. I would need to add multiple layers of MDF to the door and beef up the hinges.
"Homewood Doors" sounds like a residential door manufacturer (=expensive). I'm suggesting going through the "yellow pages" and look for a commercial steel door supplier. Here, a basic door w/o label would be around the $200 mark and then you could start customizing. 48" shouldn't be a problem. Do you have demolition yards that sell doors/material from buildings being demolished? One of my neighbours took a couple of "sound" doors out of a sound studio that was being renovated. Probably the one thing I didn't try to store in my garage/basement!

Only precaution about MDF on the outside of a entry door is protection from moisture. MDF will absorb water like a sponge! "Tempered" masonite is "water resistant" and a similar base material with resins in it (heavy). And you'd need wider (as well as taller) hinges to compensate for the added door thickness (and weight).

Winterfell theatre build - working title
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post #130 of 132 Old 02-18-2016, 11:49 AM
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Masonite Doors STC Rating 42

We are looking for budget alternatives to the $2k+ doors. I did find this door by Masonite. STC rating is 42.

Masonite® HD Wood Edge Steel with
1-5/8” Aluminum Full View Storm Door
(Laminated Glass
and Multipoint Hardware) (STC rating with no glass)

(I can't post links...Boo) Go to the Masonite Door website, Click Technical, Sound Transmission, then Entry without glass. Says the STC is 42.

Just wondering if anyone has any experience with this door. We are planning to add an MDF panel and Green Glue to both sides as well to bump the STC rating more.

I think this is the door at Home Depot. (Again, go to Home Depot website, search Masonite Model # 46569)

If that's the one, it's $262.21 prehung. Too good to be true??
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post #131 of 132 Old 02-18-2016, 12:46 PM
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any prehung door that you plan to add layers of MDF requires a door stop that can be removed and moved to accommodate the thicker door. It is hard to tell from the description of that steel door if the stop is movable. Wood frame doors you just pry it off and move.
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post #132 of 132 Old 02-18-2016, 02:43 PM
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BTW, Jeff (Big) has done way more doors than me, and helped me on my journey last year this time..

Quote:
Originally Posted by Jessica Lima View Post
We are looking for budget alternatives to the $2k+ doors. I did find this door by Masonite. STC rating is 42.

Masonite® HD Wood Edge Steel with
1-5/8” Aluminum Full View Storm Door
(Laminated Glass
and Multipoint Hardware) (STC rating with no glass)

(I can't post links...Boo) Go to the Masonite Door website, Click Technical, Sound Transmission, then Entry without glass. Says the STC is 42.

Just wondering if anyone has any experience with this door. We are planning to add an MDF panel and Green Glue to both sides as well to bump the STC rating more.

I think this is the door at Home Depot. (Again, go to Home Depot website, search Masonite Model # 46569)

If that's the one, it's $262.21 prehung. Too good to be true??
I did exact that research, including having the door into a frame with exterior seals on it.
This way I could add my own seals afterward as double seal system.
Look here post #141 for more details:
wood solid core interior door into exterior frame with seals
Quote:
Originally Posted by mtbdudex View Post
I got the pricing back from my special order to Milliken Millwork; wood solid core interior door into exterior frame with seals.

It would be a drop in place pre-hung door solid core door with same seals as used for exterior.

The below does not reflect the added 25% sale I had them quoted under.
With sale taken into account, line 2 below comes to $375, the basic solid core door with seals ready to install.
Now item 3 with the Mineral core, $675 on sale.
>>That may be a good option for others who again want a drop in door with sealing and huge mass (LFE containment) that do not want to do any DIY, it seems the "best" non DIY offering from a big box store out there.


What I ended up doing:
I went with my 2nd option posted earlier, ordered a traditional interior solid core door, 48" wide!
They had a "free" solid core upgrade event going on, so with tax ended up costing me $230.71, approx 2 week delivery time.

Bucket list now for door install:
  1. I'm going with the special sealing system, need to make some calls and place my order.
  2. Decide latch/handle system, concern is sound path, need to check other builds here
  3. Under the door sill plate for the automatic bottom seal, possible big piece of marble/other will be placed there
  4. We are going camping this weekend, but weekend of 10/18 I'm prepping the HT opening, re-framing it, re-do the riser, in anticipation of the door delivery.
  5. Get my original carpet installer in to advise on how to re-do riser including cutting carpet, as I have big spare piece for the re-do but depending on layout may be advantageous to cut the existing carpet a specific line, due to carpet movie theme pattern
  6. Install fire alarm in HT, as with door closed won't hear if alarm goes off
  7. Door will open 180 degrees, but will be heavy so need to look at anti-pinching closure method, most door swings I've seen only work 100 degrees or so.
  8. Decide to add GG + DW to inside of door or not, I'm 90% yes
  9. Add extra hinges for weight carrying - or replace hinges with same size but commercial hinge, or go from 4" hinge to 5" or 6" hinge.....not sure decision factor here
  10. When I did my original 4 gang box for interior lighting I did NOT use the super sized box for Grafik eye, now since I'll have the wall torn open would be time to re-do that also.

That's going to keep me busy next few weeks....and then some

Then don't forget to add $300 for full perimeter seals if you go basic solid core door in interior frame, so cost is close to $600 before adding extra mass and GG.
Quote:
Originally Posted by mtbdudex View Post
Hoot, my door seals shipped yesterday and due Thursday 2/19.
I ordered then slightly bigger and will cut to exact fit on site.


Soon there will be seals and improved soundproofing, right now my door frame is "naked", no stops/nothing, waiting for them seals!!


Handle side view from inside looking down ... Hinge side inside the HT looking down
.
Here's the current state of my door, I'm adding acoustic panel to the inside of it, at this time I've NOT added extra mass/GG to it, yet.
http://www.avsforum.com/forum/19-dedicated-theater-design-construction/1312693-diy-construction-methods-hang-able-acoustic-panels-moveable-corner-traps-not-fixed-frames-7.html#post41584321

Last edited by mtbdudex; 02-18-2016 at 02:47 PM.
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