Is this a soffit or a bulkhead?


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Old 12-18-12, 08:32 PM
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Is this a soffit or a bulkhead?

I've been working on something for hiding coaxial cable and I'd like to know what it's called. It will look something like this except mine will only stand out about 2" from the wall:



I'm making mine out of drywall and steel furring channel because my building is supposedly fireproof and I'm trying to reduce the chances of being forced to remove it. I've seen these things called soffits and bulkheads. What would you call it?
 
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Old 12-18-12, 09:15 PM
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...or fir down or valance...

or fur down or furr down...

 
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Old 12-18-12, 09:30 PM
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First time I heard a soffit called a bulkhead here I was totally baffled. Still don't believe bulkhead is correct. Now if we could get people to stop calling the attic a crawl space.

Definition of BULKHEAD
1: an upright partition separating compartments

2: a structure or partition to resist pressure or to shut off water, fire, or gas

3: a retaining wall along a waterfront

4: a projecting framework with a sloping door giving access to a cellar stairway or a shaft
Source: Bulkhead - Definition and More from the Free Merriam-Webster Dictionary

Bulk·head (blkhd)
n.
1.
a. One of the upright partitions dividing a ship into compartments and serving to add structural rigidity and to prevent the spread of leakage or fire.
b. A partition or wall serving a similar purpose in a vehicle, such as an aircraft or spacecraft.
2. A wall or an embankment, as in a mine or along a waterfront, that acts as a protective barrier.
3. Chiefly New England A horizontal or sloping structure providing access to a cellar stairway.
Source: bulkhead - definition of bulkhead by the Free Online Dictionary, Thesaurus and Encyclopedia.
 
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Old 12-18-12, 09:54 PM
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I'm going with soffit. Now I may sound like I know what I'm doing if building management makes it an issue.
 
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Old 12-19-12, 03:26 AM
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Its called a horizontal chase. Usually installed to hide air ducts, plumbing and electrical (in your case).
 
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Old 12-19-12, 03:36 AM
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I say soffit.
-----------------------------
 
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Old 12-19-12, 03:50 AM
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Soffit is the under part, fascia is the front part. I have heard them called chases, bulkheads, squared treys, and box-in's. If you gotta have a name, you can choose, but I think the purpose you are using it for would indicate it to be a "chase".
 
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Old 12-19-12, 06:26 AM
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How far in to your project are you?

I would strongly advise getting some Panduit or Wiremold raceway, or else putting up crown moulding that's had the backside routed out to make it hollow instead of a box.
 
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Old 12-19-12, 07:46 AM
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By looking at the holes in the walls, you'd guess I was two hours into it, but I spent a lot more than that. The chase/soffit would look better than raceway, and I'll have access points into it, inside two closets and through the black box, and I'll be able to replace the cable without cutting, I think. I'll be using raceway near the end (over the bedrooms), so it's a combination chase/soffit and raceway. Cable is yellow, chase/soffit is red, and raceway will go from the black box on:

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Here's an older picture that shows the start of the cable by the front door. I'm not sure whether I'll use raceway or a chase/soffit over the front door.

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Old 12-19-12, 08:22 AM
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BTW, I'm planning on at least two cables. I don't know if I'd go through this for one.
 
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Old 12-24-12, 07:13 PM
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soffit vs. bulkhead

That is a soffit a term used more in the HVAC trade. A bulkhead is a wall by definition. Bulkhead is a wall in a ship that separates compartments.
 
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Old 12-24-12, 07:24 PM
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The International Building Code section 717.2.3 covers the fire blocking requirments for a concealed space.The code would call this a soffit. Be sure to protect those spaces with fire blocking where needed.
 
 

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