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Replacing Sill supporting beam Charlie S. 08-11-2005
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Posted by Charlie S. on August 11, 2005, 5:10 am


Looking at the floor joists of our porch I noticed they are resting on a
long board that is nailed horizontally into the band joist. The porch has
to be at least 60 - 80 years old. I can't believe the board has supported
these joist without separating from the sill all these years. I'm not a
carpenter, but I can tell this isn't a good way to support a floor, even if
it is just a porch floor. The joists span 9.5 feet. Pictures of the 3rd -
8th joists in this site http://mysite.verizon.net/stamkis/id2.html show
you how the joist rest on this hanging board. You can't see the sill it's
nailed into.

Need to shore up the porch before putting in new posts. Thus, I need to
support the outer band joist and this joists holding board at the same time.
Was looking to use A-frame structures to catch the both beams/boards.
However, I am just afraid the nails of this joist supporting board may come
loose or crack if I don't do it right. Any way to replace or support this
beam so it will have some more structural integrity?




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Posted by Charlie S. on August 11, 2005, 4:32 pm



> Looking at the floor joists of our porch I noticed they are resting on a
> long board that is nailed horizontally into the band joist. The porch has
> to be at least 60 - 80 years old. I can't believe the board has supported
> these joist without separating from the sill all these years. I'm not a
> carpenter, but I can tell this isn't a good way to support a floor, even
> if it is just a porch floor. The joists span 9.5 feet. Pictures of the
> 3rd - 8th joists in this site http://mysite.verizon.net/stamkis/id2.html
> show you how the joist rest on this hanging board. You can't see the sill
> it's nailed into.
>
> Need to shore up the porch before putting in new posts. Thus, I need to
> support the outer band joist and this joists holding board at the same
> time. Was looking to use A-frame structures to catch the both
> beams/boards. However, I am just afraid the nails of this joist supporting
> board may come loose or crack if I don't do it right. Any way to replace
> or support this beam so it will have some more structural integrity?
Not sure if this is the Usenet group I should be using to post this type of
question. Any suggestions on where to turn to for this type of help?




Posted by P. Thompson on August 11, 2005, 6:35 pm


On Thu, 11 Aug 2005, Charlie S. wrote:

>> Need to shore up the porch before putting in new posts. Thus, I need to
>> support the outer band joist and this joists holding board at the same
>> time. Was looking to use A-frame structures to catch the both
>> beams/boards. However, I am just afraid the nails of this joist supporting
>> board may come loose or crack if I don't do it right. Any way to replace
>> or support this beam so it will have some more structural integrity?

http://mysite.verizon.net/stamkis/id2.html

This is probably as good a place as any to post this.

I looked at the pics and was unclear what exactly the " A-frame
structures" you were proposing were and how/where they would fit?

Have you considered joist hangers? I am not a carpenter but I have seen
those used in these sort of circumstances.

Was that a hole you were trying to highlight with the flashlight? It is
difficult to see.

---
Lord, protect me from those to whom you speak directly
All salute the new age, and I hope nobody escapes


Posted by Charlie S. on August 11, 2005, 8:06 pm



> On Thu, 11 Aug 2005, Charlie S. wrote:
>
>>> Need to shore up the porch before putting in new posts. Thus, I need to
>>> support the outer band joist and this joists holding board at the same
>>> time. Was looking to use A-frame structures to catch the both
>>> beams/boards. However, I am just afraid the nails of this joist
>>> supporting
>>> board may come loose or crack if I don't do it right. Any way to
>>> replace
>>> or support this beam so it will have some more structural integrity?
>
> http://mysite.verizon.net/stamkis/id2.html
>
> This is probably as good a place as any to post this.
>
> I looked at the pics and was unclear what exactly the " A-frame
> structures" you were proposing were and how/where they would fit?

http://mysite.verizon.net/stamkis/id2.html

I was thinking of building a smaller version of the porch swing A-frame I
just posted on the site (see above). I would cut the top of the A to make
it flat and rest the the sill on it. I would probably use smaller beams to
holds the two sides together.

I also posted some diagrams of what I'm trying to build and do. I don't
know how clear they might be.

> Have you considered joist hangers? I am not a carpenter but I have seen
> those used in these sort of circumstances.

Hanger joist may be helpful, but these floors are not that thick. I'd have
to use short nails or screws... not offering much support. When I am
finished with the granite footings and outside posts, I was thinking of
running two 2x8's perpendicular to the joists and support them on posts.

>
> Was that a hole you were trying to highlight with the flashlight? It is
> difficult to see.

I was just trying to make it easier to see the conditions of the joists and
their connecting points. The tenth joist seems to have some damage.
>




Posted by Charlie S. on August 11, 2005, 8:06 pm



> On Thu, 11 Aug 2005, Charlie S. wrote:
>
>>> Need to shore up the porch before putting in new posts. Thus, I need to
>>> support the outer band joist and this joists holding board at the same
>>> time. Was looking to use A-frame structures to catch the both
>>> beams/boards. However, I am just afraid the nails of this joist
>>> supporting
>>> board may come loose or crack if I don't do it right. Any way to
>>> replace
>>> or support this beam so it will have some more structural integrity?
>
> http://mysite.verizon.net/stamkis/id2.html
>
> This is probably as good a place as any to post this.
>
> I looked at the pics and was unclear what exactly the " A-frame
> structures" you were proposing were and how/where they would fit?

http://mysite.verizon.net/stamkis/id2.html

I was thinking of building a smaller version of the porch swing A-frame I
just posted on the site (see above). I would cut the top of the A to make
it flat and rest the the sill on it. I would probably use smaller beams to
holds the two sides together.

I also posted some diagrams of what I'm trying to build and do. I don't
know how clear they might be.

> Have you considered joist hangers? I am not a carpenter but I have seen
> those used in these sort of circumstances.

Hanger joist may be helpful, but these floors are not that thick. I'd have
to use short nails or screws... not offering much support. When I am
finished with the granite footings and outside posts, I was thinking of
running two 2x8's perpendicular to the joists and support them on posts.

>
> Was that a hole you were trying to highlight with the flashlight? It is
> difficult to see.

I was just trying to make it easier to see the conditions of the joists and
their connecting points. The tenth joist seems to have some damage.
>





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