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iso booth sub-flooring... will this be structurally sound?

Forum Audio : Pro Audio - iso booth sub-flooring... will this be structurally sound?

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Anonymous   12-31-2004 at 07:02:33 PM

Archived from groups: rec.audio.pro (More info?)

 

i'm working on the idea of putting my iso booth on a rolling caster
platform, in case i need to pull it out to get to the hvac, wall
outlets.

right now I have 5 rolling casters, forming an X-pattern (4 on the
corners, one in the center). the platform is 5-ply 23/32" plywood.
the size is 48x66.5".

i stepped on it and it's pretty "creaky" and flexy. i'm hoping when I
put the actual iso booth above it, the creaks will go away, because the
2x4's of the iso-booth sub-flooring will be resting on 20 Auralex
U-boats.

i could ditch the rolling caster thing...any opinions?

I could screw in some metal handles to the bottom of the iso booth and
just "muscle" it when i need to get behind the booth.

But I thought the locking casters would be cool, and would also help in
transmission loss... since the 5 casters only touch in small points on
the floor, less shock would get transmitted into the booth from a stomp
or footfall in another part of the building.
so basically, to caster or not to caster, that is the question...

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Anonymous   12-31-2004 at 10:49:09 PM
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Archived from groups: rec.audio.pro (More info?)

 

On 31 Dec 2004 13:02:33 -0800, genericaudioperson@hotmail.com wrote:

>But I thought the locking casters would be cool, and would also help in
>transmission loss... since the 5 casters only touch in small points on
>the floor, less shock would get transmitted into the booth from a stomp
>or footfall in another part of the building.
>so basically, to caster or not to caster, that is the question...

A layer of something cushy between the iso booth and the moving
platform probably wouldn't hurt, but it'd probably also be redundant.
:-)

Better safe than sorry? *shrug*

Most important question though, is if the casters are rated for the
weight.

Cheers -
jtougas

listen- there's a hell of a good universe next door
let's go

e.e. cummings

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Anonymous   01-01-2005 at 06:23:05 PM
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Archived from groups: rec.audio.pro (More info?)

 

On 31 Dec 2004 13:02:33 -0800, genericaudioperson@hotmail.com wrote:


>right now I have 5 rolling casters, forming an X-pattern (4 on the
>corners, one in the center). the platform is 5-ply 23/32" plywood.
>the size is 48x66.5".

Something else I should have asked: What kind of framing are you using
to support the plywood?
jtougas

listen- there's a hell of a good universe next door
let's go

e.e. cummings

Reply to Anonymous
Anonymous   01-01-2005 at 06:07:21 PM
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Archived from groups: rec.audio.pro (More info?)

 

the booth is going to be floated on auralex u-boats, so the u-boats
will be what's immediately above the caster-roll around platform.

Reply to Anonymous
Anonymous   01-01-2005 at 06:10:19 PM
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Archived from groups: rec.audio.pro (More info?)

 

the rollaround plywood platform has no framing. the underside of the
iso-booth is the 2x4's floated on auralex u-boats.

as i looked at it and played around with it, i came to the conclusion
that i should have many small casters rather than 5 big ones. so it
looks like i'm going to have about 20 casters on the bottom.

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Anonymous   01-01-2005 at 07:13:12 PM
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Archived from groups: rec.audio.pro (More info?)

 

<genericaudioperson@hotmail.com> wrote in message
news:1104610219.240144.29320@c13g2000cwb.googlegroups.com...
> the rollaround plywood platform has no framing. the underside of the
> iso-booth is the 2x4's floated on auralex u-boats.
>
> as i looked at it and played around with it, i came to the conclusion
> that i should have many small casters rather than 5 big ones. so it
> looks like i'm going to have about 20 casters on the bottom.
>

How about not using casters at all and use some furniture glides instead?
Since it sounds like you'll only need to move the booth every once in a
great while, the glides would make your booth less tall and tipsy and the
glides are fairly cheap and can be easy to attach. ( a lot of them nail on
which is easiest but if you think you'll need to level out the booth get the
kind with bolts. ) Get the largest ones you can find that will work best on
the floor of you studio ( i.e. use the steel capped ones for carpet and
maybe plastic capped ones for wood etc. ) Here's a couple sites to give you
an idea but most hardware stores carry these :

http://doityourself.com/store/furnitureglides.htm

http://www.guden.com/display-GLI.asp

Best of luck!

John L Rice
Drummer@ImJohn.com

Reply to Anonymous
Anonymous   01-01-2005 at 10:38:39 PM
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Archived from groups: rec.audio.pro (More info?)

 

On 1 Jan 2005 12:10:19 -0800, genericaudioperson@hotmail.com wrote:

>the rollaround plywood platform has no framing. the underside of the
>iso-booth is the 2x4's floated on auralex u-boats.
>
>as i looked at it and played around with it, i came to the conclusion
>that i should have many small casters rather than 5 big ones. so it
>looks like i'm going to have about 20 casters on the bottom.

Should be fine.

jtougas

listen- there's a hell of a good universe next door
let's go

e.e. cummings

Reply to Anonymous
Anonymous   01-03-2005 at 01:39:06 AM
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Archived from groups: rec.audio.pro (More info?)

 

thanks everyone,

i went with 20 casters (!!!). it took hours to drill and bolt, but i
think it's going to be "swell" in Little Rascal speak.

Reply to Anonymous
Anonymous   01-07-2005 at 11:09:37 PM
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Archived from groups: rec.audio.pro (More info?)

 

<< But I thought the locking casters would be cool, and would also help in
transmission loss... since the 5 casters only touch in small points on
the floor, less shock would get transmitted into the booth from a stomp
or footfall in another part of the building.
so basically, to caster or not to caster, that is the question... >>

 



Well, it may help you or it may hurt you, but you will also have a resonant
chamber under the platform when raised on the casters. I think it will be
pretty boomy with that air space under there.

Scott Fraser

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