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Posted by on February 4, 2007, 11:11 pm
Preface: my wife and I are first time owner-builders early in the
education/planning phase.
I've been looking heavily into panelized homes. I was looking on the
website of one supplier in our area, Harvest Homes ( http://www.harvesthomes.com/
) and noticed that in their construction process (
http://www.harvesthomes.com/construction_1.html ), it seemed like the
floor decking is sitting on top of the girder and sill ( see image ->
http://www.harvesthomes.com/construction/construction830.jpg ). It'd
kind of a bummer because now there's this huge beam running the length
of the basement ceiling...
I'm wondering I were to ask them to use floor trusses 18" OC, we could
install the decking without using any girders on a house that's no
more than 28ft. deep ( first floor -> http://www.frankbetz.com/
homeplans/plan_info.html?pn=981&vw=3 ).
As a followup to that, on the second floor of this plan ( second floor
-> http://www.frankbetz.com/homeplans/plan_info.html?pn=981&vw=4 ), I
am not sure I understand how the floor would be framed. Specifically,
Bedroom 2 seems to have only two walls at 90 degree angles supporting
it! It seems like the first floor column that's marked as being
"Decorative" should actually be some sort of structural support
column, right?
Any info and input would be greatly appreciated; I'm just trying to
get a basic understanding of these things. Thanks
- Chuck
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Posted by marson on February 5, 2007, 8:25 am
On Feb 4, 10:11 pm, c...@charliedigital.com wrote:
> Preface: my wife and I are first time owner-builders early in the
> education/planning phase.
> I've been looking heavily into panelized homes. I was looking on the
> website of one supplier in our area, Harvest Homes
(http://www.harvesthomes.com/
> ) and noticed that in their construction process
(http://www.harvesthomes.com/construction_1.html), it seemed like the
> floor decking is sitting on top of the girder and sill ( see image
->http://www.harvesthomes.com/construction/construction830.jpg). It'd
> kind of a bummer because now there's this huge beam running the length
> of the basement ceiling...
> I'm wondering I were to ask them to use floor trusses 18" OC, we could
> install the decking without using any girders on a house that's no
> more than 28ft. deep ( first floor ->http://www.frankbetz.com/
> homeplans/plan_info.html?pn=981&vw=3 ).
> As a followup to that, on the second floor of this plan ( second floor
> ->http://www.frankbetz.com/homeplans/plan_info.html?pn=981&vw=4), I
> am not sure I understand how the floor would be framed. Specifically,
> Bedroom 2 seems to have only two walls at 90 degree angles supporting
> it! It seems like the first floor column that's marked as being
> "Decorative" should actually be some sort of structural support
> column, right?
> Any info and input would be greatly appreciated; I'm just trying to
> get a basic understanding of these things. Thanks
> - Chuck
If a beam (which you call a "girder" is a problem, it can be buried in
the floor system, with the joists hangered off it. This is a bit
more expensive than setting the joists on top of the beam, but not a
lot. Can't really tell from your floor plan what is going on up on
the second floor, but usually there are walls where posts to hold up a
second floor beam (similar to the beam for the first floor) can be
hidden. Floor trusses might be an option, but spanning 28' would get
expensive, I'm thinking.
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Posted by Michael Bulatovich on February 5, 2007, 8:42 am
> On Feb 4, 10:11 pm, c...@charliedigital.com wrote:
>> Preface: my wife and I are first time owner-builders early in the
>> education/planning phase.
>> I've been looking heavily into panelized homes. I was looking on the
>> website of one supplier in our area, Harvest Homes
>> (http://www.harvesthomes.com/
>> ) and noticed that in their construction process
>> (http://www.harvesthomes.com/construction_1.html), it seemed like the
>> floor decking is sitting on top of the girder and sill ( see
>> image ->http://www.harvesthomes.com/construction/construction830.jpg).
>> It'd
>> kind of a bummer because now there's this huge beam running the length
>> of the basement ceiling...
>> I'm wondering I were to ask them to use floor trusses 18" OC, we could
>> install the decking without using any girders on a house that's no
>> more than 28ft. deep ( first floor ->http://www.frankbetz.com/
>> homeplans/plan_info.html?pn=981&vw=3 ).
>> As a followup to that, on the second floor of this plan ( second floor
>> ->http://www.frankbetz.com/homeplans/plan_info.html?pn=981&vw=4), I
>> am not sure I understand how the floor would be framed. Specifically,
>> Bedroom 2 seems to have only two walls at 90 degree angles supporting
>> it! It seems like the first floor column that's marked as being
>> "Decorative" should actually be some sort of structural support
>> column, right?
>> Any info and input would be greatly appreciated; I'm just trying to
>> get a basic understanding of these things. Thanks
>> - Chuck
> If a beam (which you call a "girder" is a problem, it can be buried in
> the floor system, with the joists hangered off it. This is a bit
> more expensive than setting the joists on top of the beam, but not a
> lot. Can't really tell from your floor plan what is going on up on
> the second floor, but usually there are walls where posts to hold up a
> second floor beam (similar to the beam for the first floor) can be
> hidden. Floor trusses might be an option, but spanning 28' would get
> expensive, I'm thinking.
I've never spanned more than about 22' in a house. ($$$) Remember that flush
beams have big implications for forced air mechanical systems.
I don't know why someone who doesn't know much about the subject would try
anything out of the ordinary. You're base of information support is so much
smaller...As for the structural question, you could only answer it if you
could see a framing plan and I don't.
--
MichaelB
www.michaelbulatovich.ca
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Posted by HockeyFan on February 7, 2007, 4:52 pm
Having built my own home after years of research, I was successful
both in building, but also building one-off from what most people do.
This being said, my advise to you is to speak directly with a
construction engineer about what you are wanting to achieve. The
engineer will tell you absolutely what you can get away with and what
you cannot. In fact, he might end up with a better solution for you
than what you are planning.
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