We got our deck extended. The supports are good and put in concrete-
however - as you walk across the railing around - especially on one side
shakes noticeably. What is the best method to minimize the movement.
Deck size 20X20 - 11 ft raised above the ground!
you can probably get by if you just run one brace diagonally from corner to
corner under the decking nailing/screwing it to each joist. its probably
doing more twisting than actual movement. try that first.
Do you mean the deck itself shakes? This is probably a function of using
too-small framing members, or too-great distance between supports. It
can be improved by sistering the deck joists, but they should have been
wider to begin with. You should consult with your deck contractor; you
don't want to put too much weight on the outer beams.
If only the railing shakes, then it was built flimsily and without
proper anchoring. This at least is much more easily (and cheaply)
solved. It depends on how the posts are anchored, but adding L-brackets
and cross braces is sure to help.
In both cases you may wish to review your contract and the amount of
input you gave regarding size of framing, distance of supports, and
such, in relation to overall cost. Ideally you should get the contractor
to fix it for nothing, but you'll probably have to come to some sort of
As you walk on-across the railing it shakes? Dont walk On the railing.
The deck ? the railing ? railing supports ? main ground supports ?
What does the builder say , we cant see it. What would your insurance
and Inspector say.
Probably no insurance, no occupancy permit
I'm having a hard time to understand what you mean by "Shaking."
If you mean that the deck floor has a feeling of bouncing up and down,
you can install one or more rows of blocking between the joists
(perpendicular to joists). This would stiffen the structure and
eliminate/ reduce bouncing.
Mr. Fixit eh.
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