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Engineer, floor joist ???,,

montanajoemontanajoe Forums Admins, Member, Moderator Posts: 60,240 ******
edited March 2015 in General Discussion
How much weight can my floor hold?
2x10 joist, D-Fir-L #2 1600 E factor
16"OC
13' span

Thanks.

Comments

  • LesWVaLesWVa Member Posts: 10,490 ✭✭
    edited November -1
    40 psf Live Load
    10 psf Dead Load
  • fideaufideau Member Posts: 11,895 ✭✭✭
    edited November -1
    Sounds like a new safe is contemplated.[8D]
  • montanajoemontanajoe Forums Admins, Member, Moderator Posts: 60,240 ******
    edited November -1
    Playing with ideas;
    Gun safe
    50 gal fish tank
  • woodshed87woodshed87 Member Posts: 23,478 ✭✭✭
    edited November -1
    Are the Fish Considered Live Load[;)]quote:Originally posted by montanajoe
    Playing with ideas;
    Gun safe
    50 gal fish tank
  • mogley98mogley98 Member Posts: 18,291 ✭✭✭✭
    edited November -1
    Actually the fish tank and the safe would be live load if I'm not mistaken
    Why don't we go to school and work on the weekends and take the week off!
  • DPHMINDPHMIN Member Posts: 952 ✭✭✭
    edited November -1
    quote:Originally posted by forgemonkey
    quote:Originally posted by montanajoe
    Playing with ideas;
    Gun safe
    50 gal fish tank



    ,,,,,,,,,,they're gonna rust in a fish tank !!!!!![}:)][:D]


    They'll be easier to retrieve than from the bottom of a lake.[:)]
  • Twowings2UTwowings2U Member Posts: 90 ✭✭
    edited November -1
    If you keep the heavy items close to the walls where the ends of the joists rest, you will have much less deflection (sagging))
  • MG1890MG1890 Member Posts: 4,460 ✭✭
    edited November -1
    Remember if the house burns, the safe winds up in the swimming pool (basement).
  • RobOzRobOz Member Posts: 9,523 ✭✭✭
    edited November -1
    quote:Originally posted by MG1890
    Remember if the house burns, the safe winds up in the swimming pool (basement).


    So what floor would you recommend keeping a safe.[:D]
  • 47studebaker47studebaker Member Posts: 2,251 ✭✭✭✭✭
    edited November -1
    ground level !
  • montanajoemontanajoe Forums Admins, Member, Moderator Posts: 60,240 ******
    edited November -1
    quote:Originally posted by DPHMIN
    quote:Originally posted by forgemonkey
    quote:Originally posted by montanajoe
    Playing with ideas;
    Gun safe
    50 gal fish tank



    ,,,,,,,,,,they're gonna rust in a fish tank !!!!!![}:)][:D]


    They'll be easier to retrieve than from the bottom of a lake.[:)]
    [:D][:D][:D][:D],exactly,,,
  • yoshmysteryoshmyster Member Posts: 22,059 ✭✭✭✭
    edited November -1
    50 gallon tank, stand, decoration and water will weigh about 500 pounds (a little less but close enough). Then add a safe on the same floor we're talking what about a thousand pounds? I say look for a place with a cement slab [:D].
  • MaxOHMSMaxOHMS Member Posts: 14,715
    edited November -1
    Assuming your fish tank or your safe will be against a wall and not in the middle of the span, most of the weight will be supported by walls underneath.

    The floor/subfloor is what is going to tend to get pressed beyond capacity.

    After you determine the exact placement of (especially the heavier safe) you can locate the joists in relation to placement.

    Either adjust the placement until the weight is evenly supported by joists, or lay a few 2x10's/2x12's under the weight to pick up the support of another joist/spread the weight across.

    ***DISCLAIMER***

    The above ramblings are the opinions of a dumb redneck country boy, and not a licensed engineer.

    I will not be responsible for the damage caused by the upper floor of your house falling down upon and crushing the contents of the lower floor and covering it with busted guns, water, and dead stinky fish.
  • babunbabun Member Posts: 11,038 ✭✭✭
    edited November -1
    Also depends on WHICH wall you place the items.

    Two walls will have the joists running perpendicular and two walls
    will have the joists running parallel.

    The MORE joists you have the load on the better.

    Your Fish tank may be only 30" wide by 72" long and if on the
    "wrong" wall will have only one joist under it.
  • MaxOHMSMaxOHMS Member Posts: 14,715
    edited November -1
    quote:Originally posted by babun
    Also depends on WHICH wall you place the items.

    Two walls will have the joists running perpendicular and two walls
    will have the joists running parallel.

    The MORE joists you have the load on the better.

    Your Fish tank may be only 30" wide by 72" long and if on the
    "wrong" wall will have only one joist under it.


    Yes.

    I was picturing a wall with joists running perpendicular.

    I should have noted in my disclaimer that I had made a pre-coffee analysis. [:D]

    The best strength would be in a corner, assuming there is a supporting wall directly under the upper wall.
  • discusdaddiscusdad Member Posts: 11,427 ✭✭✭✭
    edited November -1
    dammit u gotta clean my screen nowquote:Originally posted by forgemonkey
    quote:Originally posted by montanajoe
    Playing with ideas;
    Gun safe
    50 gal fish tank



    ,,,,,,,,,,they're gonna rust in a fish tank !!!!!![}:)][:D]
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