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How much weight can a 1x 12 select pine...

Posted on 10/11/16 at 3:10 pm
Posted by doublecutter
Member since Oct 2003
6871 posts
Posted on 10/11/16 at 3:10 pm
spanning 36" safely support?

I googled span charts for 1 by dimensional lumber and couldn't find anything.
Posted by Clyde Tipton
Planet Earth
Member since Dec 2007
39670 posts
Posted on 10/11/16 at 3:12 pm to
Like a shelf?
Posted by shawnlsu
Member since Nov 2011
23682 posts
Posted on 10/11/16 at 3:12 pm to
Flat or standing on its side?
This post was edited on 10/11/16 at 3:13 pm
Posted by Boat Motor Bandit
Member since Jun 2016
1891 posts
Posted on 10/11/16 at 3:13 pm to
9 lbs is how much the board weighs
This post was edited on 10/11/16 at 3:18 pm
Posted by djangochained
Gardere
Member since Jul 2013
19054 posts
Posted on 10/11/16 at 3:13 pm to
vertically?

not much
Posted by DownshiftAndFloorIt
Here
Member since Jan 2011
69009 posts
Posted on 10/11/16 at 3:16 pm to
Orientation, load distribution, static or dynamic load?
Posted by Boudreaux35
BR
Member since Sep 2007
22281 posts
Posted on 10/11/16 at 3:18 pm to
How long are you planning on it holding this weight? The problem with timber, and especially soft wood (go ahead with the dick jokes), is that it is susceptible to failure due to loading over time. In other words, it can support a lot of load for a short period, but that same load will cause sagging and eventual failure over time.

Give me some more details on what you need to do and I can help you more.
Posted by DownshiftAndFloorIt
Here
Member since Jan 2011
69009 posts
Posted on 10/11/16 at 3:20 pm to
So before we overengineer the shite out of this thing, what are you looking to do here? Build a shelf to put some pots and pans on, or deck the top of a bridge?
Posted by Boudreaux35
BR
Member since Sep 2007
22281 posts
Posted on 10/11/16 at 3:23 pm to
quote:

overengineer the shite out of this thing


Not possible!!! :)
Posted by doublecutter
Member since Oct 2003
6871 posts
Posted on 10/11/16 at 3:25 pm to
Vertical, load basically in the middle half, dynamic.
Posted by DownshiftAndFloorIt
Here
Member since Jan 2011
69009 posts
Posted on 10/11/16 at 3:31 pm to
Holding up a double mattress in your dorm room?
Posted by doublecutter
Member since Oct 2003
6871 posts
Posted on 10/11/16 at 3:32 pm to


This is what I am building. Want to make it 3 ft long, and want to know if a 1x12 would work on the seat portion. So, figure a person sitting on it.
This post was edited on 10/11/16 at 3:33 pm
Posted by Melvin Spellvin
proud dad of 2 A&M honor grads
Member since Jul 2015
1676 posts
Posted on 10/11/16 at 3:33 pm to
aren't you glad you asked here...
Posted by DownshiftAndFloorIt
Here
Member since Jan 2011
69009 posts
Posted on 10/11/16 at 3:34 pm to
Don't know what kind of friends you have but a 1x on flat ain't holding up none of my podnuhs.

You need an additional board (2x4) under the middle vertically to make it like a T beam and then it would be plenty good. Wouldn't be able to see it without looking for it either.
This post was edited on 10/11/16 at 3:36 pm
Posted by bayoudude
Member since Dec 2007
25522 posts
Posted on 10/11/16 at 3:37 pm to
I would run a 2x4 on edge centered underneath it. It will crack without any support with anyone other than a kid sitting on it.
Posted by doublecutter
Member since Oct 2003
6871 posts
Posted on 10/11/16 at 3:41 pm to
That sounds like a good idea
Posted by Boudreaux35
BR
Member since Sep 2007
22281 posts
Posted on 10/11/16 at 3:41 pm to
What Downshift said.

Probably get away with smaller than a 2x4 also. If you want it to look nicer, like the picture and use oak, I would make the vertical piece a 1x2. The important part is that it needs to be connected to the flat board soundly, OR make sure that the vertical piece is supported on both ends by the legs of the chair.
Posted by DownshiftAndFloorIt
Here
Member since Jan 2011
69009 posts
Posted on 10/11/16 at 3:47 pm to
You're friends must not be as fat and drunk as mine are

2x4 is bare minimum for EVERYTHING.
Posted by doublecutter
Member since Oct 2003
6871 posts
Posted on 10/11/16 at 3:47 pm to
The one in the pic is made out of 1" cypress that was given to me by the person I built it for.
And my daughter wants me to build one for her, but I don't want to spend $125 for cypress.
Posted by DownshiftAndFloorIt
Here
Member since Jan 2011
69009 posts
Posted on 10/11/16 at 3:49 pm to
Could you build it out of cedar? I think 1x12 cedar boards at lowes are like $30 for 8' and they're pretty nice on the finished side.
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