Can I span 17' 4" with 2x6's, 16 oc, ceiling w/drywall, insulation, no attic storage?

Can I span 17' 4" with 2x6's, 16 oc, ceiling w/drywall, insulation, no attic storage? I wanna remove a wall that is within this span. It looks like 2 or 3 joists(?) already span this distance in line with the doorway. ____________ | |j | | |o | |_____|i__ _| | |s | | |t | |_____|s__ _|
Add pictures here
<% if( /^image/.test(type) ){ %>
<% } %>
<%-name%>
Add image file
Upload

attic
or
-------------------------------------------------- yes as long as you nail (not screws) 2x4's from the ceiling joist to the rafters creating a truss.
otherwise that would require 2x10 ceiling joists for a 17' 4" span 16" on center. --------------------------------------------------
Add pictures here
<% if( /^image/.test(type) ){ %>
<% } %>
<%-name%>
Add image file
Upload

Why nail? Just curious.
EJ
Add pictures here
<% if( /^image/.test(type) ){ %>
<% } %>
<%-name%>
Add image file
Upload
Nails are much stronger with regards to shear strength. Screws resist pulling out, but are much more brittle and easy to snap.

2
on
Add pictures here
<% if( /^image/.test(type) ){ %>
<% } %>
<%-name%>
Add image file
Upload
Creative answer! But, I wonder if that's legal, especially since, if not done right, the ceiling will fall.
Renata
On Tue, 24 Jun 2003 19:50:28 -0400, "Carpenter Ant"

--snip--
Add pictures here
<% if( /^image/.test(type) ){ %>
<% } %>
<%-name%>
Add image file
Upload
On Wed, 25 Jun 2003 21:24:21 GMT, snipped-for-privacy@myrealbox.com (Renata) wrote:

Crack maybe, not fall as long as it meets code. As long as the drywall is properly attached, nothing can fall unless the beams drop.
But, FWIW, don't do it even if it meets code. You have to do all the 2x "truss" work to make it stable enough to not crack. That takes a lot of time. It also makes the "attic" space nearly unusable and inaccessible, even for running HVAC and wiring. Spend a couple of bucks more and at least put 2x8's in.
Also, ask the building inspector. If he doesn't like it, it doesn't matter what anyone here thinks.
Bob

Add pictures here
<% if( /^image/.test(type) ){ %>
<% } %>
<%-name%>
Add image file
Upload

on
Add pictures here
<% if( /^image/.test(type) ){ %>
<% } %>
<%-name%>
Add image file
Upload
According to a span calculation program some grades of some species can do it. I'm not sure if the 10# live 5# dead loads they used is enough for the 1+ ft of insulation. For no. 2 southern pine, 16"oc, L/240, the software said 17' 8". Don't know if I can identify the wood that's up there. John

Add pictures here
<% if( /^image/.test(type) ){ %>
<% } %>
<%-name%>
Add image file
Upload
Ceiling Joist (Drywall - No future rooms & limited attic storage) :         20 PSF Live, 10PSF Dead         #2 & Btr L/240         2X6                 2X8 2X10                 2X12     12" o.c.     16" o.c.     12" o.c.     16" o.c. 12" o.c.     16" o.c.     12" o.c.     16" o.c. SPF     13-8         12-5         18-0         16-4 22-11         20-10           --         -- Hem-Fir 14-5         13-1         19-0         17-3 24-3         21-11         29-4         25-5
from http://www.admoyer.com/builderslibrary/lib.spancharts.htm (one of many span table sites)
Renata
wrote:

Add pictures here
<% if( /^image/.test(type) ){ %>
<% } %>
<%-name%>
Add image file
Upload
On Mon, 30 Jun 2003 14:39:18 GMT, snipped-for-privacy@myrealbox.com (Renata) wrote:

I don't disagree with you Renata that the current code would not allow a 2x6. The question was about his *existing* structure which apparently does use a 2x6.
I'll still stand by my advice that whether it met the code or not, whether that wall was considered supporting or not, removing the wall would not be the best idea.
Bob
Add pictures here
<% if( /^image/.test(type) ){ %>
<% } %>
<%-name%>
Add image file
Upload
I wasn't going to reply, but some clarification is in order.
Building code is a _minimum_ standard. But, Building Code ISN'T the issue here.
Those tables aren't suggestions - if they "state" that a 2x6 CAN"T span 17' it means that it will fail in some fashion if you try to span 17' with a 2x6. While the failure may not be a collapse, the ceiling sure ain't gonna be looking good.
This seems to indicate that the wall in the middle is indeed load bearing. (Yo - OP - do those joists overlap each other over that wall or not)
On 6/25 @ 7:07pm, you (Bob) stated "There's a good chance that wall is not "formally" load bearing and that your house met the code way back when. Still, it is no doubt stabilizing the rafters and keeping your ceiling from cracking under stress. "
My point is that code is actually irrelevant here, as far as it goes. If you don't shore up those 2x6 joists (by sistering 2x8s, for example) and do remove the center wall, you're going to have problems.
On 6/28 you stated "If the 2x6's are "ties", then they are stressed horizontally and not set up to handle a top load, just the weight of the drywall below. It probably is not a good idea, probably does not meet code today, probably did when it was built. "
The span table I posted was for ceiling joists, no load in attic space above.
Probably never met code (unless they were true "2" x "6" maybe), probably never works, forget it.
Perhaps you should take a few structures and building classes before making such definitive statements.
I apologize for not being the most diplomatic, but folks who haven't a clue about what they're talking, and haven't a clue that they really haven't a clue, and insistandinsist that they're right, well, at that point, I tend to lose patience.
Renata
wrote:

Add pictures here
<% if( /^image/.test(type) ){ %>
<% } %>
<%-name%>
Add image file
Upload

Site Timeline

HomeOwnersHub.com is a website for homeowners and building and maintenance pros. It is not affiliated with any of the manufacturers or service providers discussed here. All logos and trade names are the property of their respective owners.