Iam building a deck twevle foot contained by the heavens and iam wondering how fari can walk inbetween supports.? iam using 2/12 lumber
iam using 2/12 lumber
Something this tall I would own it professionally built you have alot of factors beside something like this and I doubt you want to fall sour of it or is crumbling to the ground. I would say however
6ft max between supports. use 6x6posts and in atleast 4'of cement something this soaring I would mount in cement in ground fairly then just a top mounting device. Really though conceivably get a few quotes from contractors or even some ideas from them most will come administer free estimates and share some ideas on whyat would work. it wont matter how high you build it... but what matters is the wind factor .. if you useing 2 /12 that alot of cargo .. to hold up 12ft off the ground .
i would use a support every 6ft apart ...
and use bolts instead of nails ...
cross supports really give a hand here to prevent a buckling affect
You need to consult with a professional that know the span tables for dimensional lumber. The elevation of this deck will be of some concern relative to wind, sway, stability and safekeeping. You'll need to engineer post pad and sway bracing as well.
Mike Lonergan
TradesProfessional, Inc.
Answers: It is the depth of your joists (the beams connecting the supports) that dictates the distance between supports. Generally for a home deck you can put supports on 8' to 10' centers if you use double 2 x 12s for joist. I use Redi-rod and put one joist on each side of the supports with two 1/2" redi-rod bolts adjectives the way through and use big washers with double nuts on respectively side.
With a deck built this high, however, I would be more concerned about "sway". I would use at most minuscule rough, full-dimensioned 6" x 6" supports anchored in concrete and at least 3' surrounded by the ground. Furthermore, I would use 2"x6" angle supports from 4' out on each joist back to respectively support and 4' below the joist. I would do this in both directions -- although not necessarily at every post. Certainly use the angle braces at each corner and the center post on respectively side, depending on the total size of your deck.
Also note that with a deck this large, most building codes will have a requirement for a 48" high railing near vertical or chainlink fill in. Don't use horizontal boards between the handrail and the deck because children climb on them and tumble over the hand rail.
Good luck near your project.
put the post, 6x6, on 8' centers.u didnt state the size of the deck.then band the outside beside (2) 2x12..then set ur griders, go next to a drop grider system, and install ur joist.i really need to know the size of the deck to answer this better...email me.
lic. gen. contractor