1 1/8" Industrial Particleboard for front baffles. Any Experience? - diyAudio
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Old 8th January 2013, 03:20 AM   #1
dstmbgh is offline dstmbgh  United States
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Default 1 1/8" Industrial Particleboard for front baffles. Any Experience?

My local Menards has some 1 1/8" thick particleboard shelving, termed "industrial," that I'm considering using for the front baffles for a two-way with recessed drivers and 5/8" roundovers (fyi, the rest of the 0.5 cu ft enclosure is 3/4" mdf). The surface is very smooth and the material seems much denser with finer "particles" than I usually associate with particleboard. The close-up of this picture is NOT representative of the item in the store: 1 1/8" x 11 1/4" x 72" Shelving at Menards

It looks like it would produce good clean edges with cutting and routing, as the edge corners of the shelving boards are quite sharp. Its size, as shelving material, makes it very manageable to work with, and the price is right.

Does anyone have experience with this product with which they can either encourage or discourage me to proceed?

Pondering particleboard in Indianapolis,
David
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Old 8th January 2013, 03:57 AM   #2
Einric is offline Einric  United States
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As a general statement, Many big name manufacturers have used particle board for their speakers.
I recently worked on a pair of mid 90's Polk Monitors that were made from 5/8" quality particle board.
They sounded fantastic even for 20 yr old speakers.
Some say good quality particle board is better for building speakers than MDF.
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Old 8th January 2013, 02:19 PM   #3
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If you feel that it is a worthy alternative to mdf, and is easy to work with because of size .... buy it and try it.
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Old 9th January 2013, 01:37 AM   #4
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Agree. At least it is bits of wood rather than paper dust. You should be going into the forest and gathering your own logs then hand sawing the veneers for your own plywood but hey! we're all busy!
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Old 9th January 2013, 01:58 AM   #5
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Quote:
Originally Posted by Einric View Post
Some say good quality particle board is better for building speakers than MDF.
+1.

1.25" not likely to the same level as 18mm quality ply, but the larger particles make it less homogenous than MDF with larger impedance boundaries for damping.

dave
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Old 9th January 2013, 02:07 AM   #6
Einric is offline Einric  United States
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I knew Dave would chime in on this one, I think I actually heard him say Quality PB is better.

Since you posted this I have gone around looking for the stuff.
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Old 9th January 2013, 02:23 AM   #7
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With particle board that thick and an enclosure that small, I really think the only issue is how well it cuts. My guess is just fine.
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Old 9th January 2013, 05:08 AM   #8
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Location: Mar del Plata, a BIG seasonal getaway city, can see the Ocean from our residence.
This material looks very similar to the stuff I've been using for a very long time. Earlier I had used a thinner 5/8" stock but when I screwed down a tapered (flush) style phillips screw and I was one half inch from the edge the wood would "collapse", fracturing before the screw was flush.
I then went to a full 1" version for all my builds, no "collapse" failures. Of course the proper size pilot hole is used.
As long as the cuts are squared right it is very easy & stout stuff....perhaps more so than "my" stuff @ 1".
Since it is so thick you need not make "tricky" joints.....squared up 'plain' joints are more than enough. I ran 2" screws for one inch material spaced about five inches....your case I would go with 2 1/4" screws....glued of course before you screw it down. My 17 YO towers are built with one inch, still stout & have been jostled about lots....no fatal damage...a bit of rounding on the corners but they need refurbing anyway. The solidity IS impressive...rapping knuckles on the side still gives me a very high pitch sound....similar to striking a 4X4 end on.
I think it would make for good stuff.

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Old 9th January 2013, 07:34 AM   #9
dstmbgh is offline dstmbgh  United States
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Thanks for the feedback. It's been brought to my attention that both Lowes and Home Depot have 1-1/8" thick stair tread made of mdf. I think I'll use this instead of the "industrial" particleboard mentioned above.
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Old 9th January 2013, 11:00 AM   #10
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The particleboard we have in the UK, often has small pieces of metal in it and will dull a blade quite quickly.
MDF is easier to work with but make sure you get a very good quality face mask (not one of those cheap paper ones).
I like using Gorilla glue for my builds because it expands and gives a nice airtight seal.
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