Rp

RickH

06/12/2007 7:31 AM

Joist weight chart or calculator?

Hello,

I'd like to build a storage loft shelf in my shop where the front edge
is suspended from the ceiling joists and the wall edge is lag bolted
to the wall studs (with under cleat too). It would be approx 16 feet
long and protrude 32 inches from the wall. It will be used to store
common household items like the lawn mower, and storage boxes, etc.
(I will affix a block and tackle to ceiling to hoist stuff up there).

Would I be stressing my ceiling joists too much? The ceiling joists
are 1x12 on 16 inch centers and free spanning 22 feet.

Is there a calculator or chart available that lists the load
capacities of common dimensional lumber given the spacing, span and
lumber size/species? Or do you think this will hold ok (assuming
nothing is in the attic).

Thanks
Rick


This topic has 5 replies

Rp

RickH

in reply to RickH on 06/12/2007 7:31 AM

07/12/2007 7:53 AM

On Dec 6, 8:40 pm, Tanus <[email protected]> wrote:
> RickH wrote:
> > Hello,
>
> > I'd like to build a storage loft shelf in my shop where the front edge
> > is suspended from the ceiling joists and the wall edge is lag bolted
> > to the wall studs (with under cleat too). It would be approx 16 feet
> > long and protrude 32 inches from the wall. It will be used to store
> > common household items like the lawn mower, and storage boxes, etc.
> > (I will affix a block and tackle to ceiling to hoist stuff up there).
>
> > Would I be stressing my ceiling joists too much? The ceiling joists
> > are 1x12 on 16 inch centers and free spanning 22 feet.
>
> Are you sure that's not 2 x 12?
>
> --
> Tanus
>
> This is not really a sig.
>
> http://www.home.mycybernet.net/~waugh/shop/

oops, yes its 2x12.

Rp

RickH

in reply to RickH on 06/12/2007 7:31 AM

07/12/2007 7:55 AM

On Dec 6, 1:45 pm, RayV <[email protected]> wrote:
> On Dec 6, 10:31 am, RickH <[email protected]> wrote:
>
>
>
>
>
> > Hello,
>
> > I'd like to build a storage loft shelf in my shop where the front edge
> > is suspended from the ceiling joists and the wall edge is lag bolted
> > to the wall studs (with under cleat too). It would be approx 16 feet
> > long and protrude 32 inches from the wall. It will be used to store
> > common household items like the lawn mower, and storage boxes, etc.
> > (I will affix a block and tackle to ceiling to hoist stuff up there).
>
> > Would I be stressing my ceiling joists too much? The ceiling joists
> > are 1x12 on 16 inch centers and free spanning 22 feet.
>
> > Is there a calculator or chart available that lists the load
> > capacities of common dimensional lumber given the spacing, span and
> > lumber size/species? Or do you think this will hold ok (assuming
> > nothing is in the attic).
>
> > Thanks
> > Rick
>
> http://www.awc.org/calculators/span/reversecalc/reversecalc.asp
> orhttp://www.woodbin.com/calcs/sagulator.htm- Hide quoted text -
>
> - Show quoted text -

Thanks! The span joist calculator is perfect.

Sk

"Swingman"

in reply to RickH on 06/12/2007 7:31 AM

07/12/2007 10:08 AM


"RickH" wrote

> > > Would I be stressing my ceiling joists too much? The ceiling joists
> > > are 1x12 on 16 inch centers and free spanning 22 feet.
> >
> > Are you sure that's not 2 x 12?
>
> oops, yes its 2x12.

Like megabytes/gigabytes, we knew what you meant. :)


--
www.e-woodshop.net
Last update: 11/30/07
KarlC@ (the obvious)




RN

RayV

in reply to RickH on 06/12/2007 7:31 AM

06/12/2007 11:45 AM

On Dec 6, 10:31 am, RickH <[email protected]> wrote:
> Hello,
>
> I'd like to build a storage loft shelf in my shop where the front edge
> is suspended from the ceiling joists and the wall edge is lag bolted
> to the wall studs (with under cleat too). It would be approx 16 feet
> long and protrude 32 inches from the wall. It will be used to store
> common household items like the lawn mower, and storage boxes, etc.
> (I will affix a block and tackle to ceiling to hoist stuff up there).
>
> Would I be stressing my ceiling joists too much? The ceiling joists
> are 1x12 on 16 inch centers and free spanning 22 feet.
>
> Is there a calculator or chart available that lists the load
> capacities of common dimensional lumber given the spacing, span and
> lumber size/species? Or do you think this will hold ok (assuming
> nothing is in the attic).
>
> Thanks
> Rick

http://www.awc.org/calculators/span/reversecalc/reversecalc.asp
or
http://www.woodbin.com/calcs/sagulator.htm

TT

Tanus

in reply to RickH on 06/12/2007 7:31 AM

06/12/2007 9:40 PM

RickH wrote:
> Hello,
>
> I'd like to build a storage loft shelf in my shop where the front edge
> is suspended from the ceiling joists and the wall edge is lag bolted
> to the wall studs (with under cleat too). It would be approx 16 feet
> long and protrude 32 inches from the wall. It will be used to store
> common household items like the lawn mower, and storage boxes, etc.
> (I will affix a block and tackle to ceiling to hoist stuff up there).
>
> Would I be stressing my ceiling joists too much? The ceiling joists
> are 1x12 on 16 inch centers and free spanning 22 feet.

Are you sure that's not 2 x 12?

--
Tanus

This is not really a sig.

http://www.home.mycybernet.net/~waugh/shop/


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