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Posted by CAD Wizards on January 2, 2007, 6:30 pm
Hello!
I understand you have a crude drawing in your message here, but
someone else already commented on a permit and code regulations. These
are both important things to consider. You can find span information
for joist sizes in many different books and at various online sources.
I am concerned that you are planning on attaching a 4*6 beam to the
end of the cantalievered 2*6 joists. I'm not sure if you are
considering this beam to be an additional support, but in your
application a 4*6 will not provide much more, if any more, support than
a doubled up 2*6 or even a single 2*6. If you are looking for
additional support, I would suggest following one of the other comments
to upgrade to a 2*8, but in a 4' span, 2*6's may be sufficient using
joist hangers. Hope this helps.
Sincerely,
Joseph Podwats
CAD Wizards
(570) 510-0238
www.CADwizards.com
Needing Advice wrote:
> I am constructing a small 4' * 7' freestanding back door stoop and
> would like some feedback on beam sizing. Will the 4*6 beams span the
> 7' with no problem. Joist will be 16"oc. And the stoop will be
> lightly used.
>
> I'm using 2 4*6 beams attached to 4*4 posts set on concrete footings
> (16*16*8). The beams are parallel to the side of the house. The first
> beam is about 19 inches from the foundation wall. I plan on
> cantilevering 2*6 joists on that side of the porch so that I can get
> the deck boards up against the house. The beam nearest the house will
> be lower than the other so that the joists rest on top of it but are
> flush with the far beam.
>
> I plan on using (2) 6" lag screws per post/beam connection. The beams
> will be attached to the sides of the posts and the posts will extend up
> to build a railing. I had planned to add in some minimal y-bracing if
> needed.
>
> Feedback please. This stoop will step down to a larger patio/deck when
> all is said and done. If only money wasn't an issue :) I'd do it all
> now.
>
> = 2*6 joist
> |||| 4*6 beam
> 4*4 post on each end of beams.
> Cantilever of joists is about 19 inches on one side.
>
> <-4 ft->
> h| ===||||=====|||| ^
> o| ===||||=====|||| 7ft
> u| ===||||=====|||| ^
> s| ===||||=====||||
> e| ===||||=====||||
> { steps}
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