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re: Construction math (joist) question

Posted on 2/6/17 at 9:52 pm to
Posted by RhodeDawg
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Member since Jun 2016
4450 posts
Posted on 2/6/17 at 9:52 pm to
I mis-understood. Thought we were talking floor joists not ceiling joists.
Posted by RhodeDawg
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Posted on 2/6/17 at 9:55 pm to
I was adding a 2nd floor inside in my mind.
Posted by CHEDBALLZ
South Central LA
Member since Dec 2009
23345 posts
Posted on 2/6/17 at 9:55 pm to
What you plan on putting up there? Christmas decorations, porn stash, boxes of clothes, stacks of plywood?


As long you not putting anything heavy up there you'll be fine with 2x10s 16" o.c. you'd actually be fine with them on 2' centers. If you go 16" o.c. you can lay 1/2" plywood for the floor, 2' o.c. you would have to go 3/4"
Posted by LCA131
Home of the Fake Sig lines
Member since Feb 2008
77685 posts
Posted on 2/6/17 at 9:57 pm to
That is a tiny little place.
Posted by RhodeDawg
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Member since Jun 2016
4450 posts
Posted on 2/6/17 at 9:57 pm to
quote:

As long you not putting anything heavy up there you'll be fine with 2x10s 16" o.c. you'd actually be fine with them on 2' centers. If you go 16" o.c. you can lay 1/2" plywood for the floor, 2' o.c. you would have to go 3/4" 




This is your answer based on my new understanding. This is exactly correct.
Posted by RhodeDawg
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4450 posts
Posted on 2/6/17 at 9:59 pm to
Looked big to me at first... I went back and looked and you're right.
I was building him a 2nd floor shop!
Posted by LCA131
Home of the Fake Sig lines
Member since Feb 2008
77685 posts
Posted on 2/6/17 at 10:01 pm to
I was talking about your mind...consider the source
Posted by Kingpenm3
Xanadu
Member since Aug 2011
9975 posts
Posted on 2/6/17 at 10:01 pm to
quote:

HSS6x6x1/2 columns with W18x35 beams. Weld all around with 5/16" fillet.



This seems like it would take a while with the 50 year old arc welder that I have in the barn.

Honestly, how does the cost of metal construction like this compare to wood framing? Seems like it would be expensive.

Posted by RhodeDawg
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Member since Jun 2016
4450 posts
Posted on 2/6/17 at 10:01 pm to
That too.
Posted by RhodeDawg
Delete my account
Member since Jun 2016
4450 posts
Posted on 2/6/17 at 10:03 pm to
He's joking. Unless you're storing gold bars.
Posted by Kingpenm3
Xanadu
Member since Aug 2011
9975 posts
Posted on 2/6/17 at 10:03 pm to
quote:

This is your answer based on my new understanding. This is exactly correct.



Sweetness, thanks to both of y'all.

Posted by LCA131
Home of the Fake Sig lines
Member since Feb 2008
77685 posts
Posted on 2/6/17 at 10:04 pm to
quote:

Unless you're storing gold bars


and if this is the case, I will need the address in order to inspect.
Posted by Kingpenm3
Xanadu
Member since Aug 2011
9975 posts
Posted on 2/6/17 at 10:05 pm to
quote:

He's joking. Unless you're storing gold bars.



Ha. Showing my ignorance.

Posted by CHEDBALLZ
South Central LA
Member since Dec 2009
23345 posts
Posted on 2/6/17 at 10:09 pm to
175 2x4x10 for wall studs
60 2x4x8 for top plate
75 2x10x14 for ceiling joist at 16"o.c.
45 sheets 1/2" plywood for floor plate

Posted by RhodeDawg
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Member since Jun 2016
4450 posts
Posted on 2/6/17 at 10:10 pm to
You will want to put a double top plate on your studs to catch the joists. And make sure when you do your layout to land the joists on the studs.
You can handle it.
Posted by dbbuilder79
Overton NV
Member since Dec 2010
4660 posts
Posted on 2/6/17 at 10:12 pm to
I'd still do what you suggested. Or at least 2x10, 16 o.c.

In my experience, storage means a consolidated load in a concentrated area. Anything at 2' o.c. will sag or break in that area of you use 2x4 or 2x6
Posted by RhodeDawg
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4450 posts
Posted on 2/6/17 at 10:13 pm to
Bottom plate should be pressure treated if on concrete.
Posted by Kingpenm3
Xanadu
Member since Aug 2011
9975 posts
Posted on 2/6/17 at 10:14 pm to
Awesome. Hoping to get this done to make a fully insulated, air conditioned shop so that my dad will have a place to get back into the hobbies (mainly woodworking) that he used to enjoy before his heart attack. Thanks again and again for all the help.
Posted by RhodeDawg
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Member since Jun 2016
4450 posts
Posted on 2/6/17 at 10:15 pm to
Yeah, you're right. I'd stay away from 2'oc.
The building was built that way to save costs. Don't repeat it.
Posted by RhodeDawg
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Member since Jun 2016
4450 posts
Posted on 2/6/17 at 10:16 pm to
You're more than welcome. Glad to help. DbBuilder is also correct. We're basically saying if you're gonna build it- build it right.
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