Somewhere between $15 and $50 per square foot, depending on how it is
built and what it is built out of. Anything over 30 inches off the
ground requires safety rails and a building permit. If you use
maintenance free composite decking, that will add quite a bit of cost,
as will stairways and handrails.
If you don't like your bids, you can always build it yourself.
Stick-built on site? Prefab might help, eg
4'x8' panels that bolt to a frame system.
Can we walk on a 4' roll of 10 cent/f^2 2"x4" welded-wire fence
stretched fairly tight on 4' centers, with another layer of fence
beneath? Maybe something like this, not to scale...
\\ || /
\\ || / fence
If that's out, for psychological reasons, we might screw 1x3 and 2x4 spacers
to 1/2" 4'x8' plywood, lay the fence over that, screw perimeter 1x3s over it,
turn the panel over, and screw it to 4'x8' framing.
If each 0.081" wire can support 250 pounds, a 4'x8' piece with 24 wires and
a 180 degree fold in the middle can support 2x24x250 = 12K pounds. A panel
that's 3.5" deep in the center might support 12Kx3.5/48 = 875 pounds.
OK, I should have mentioned that.
I want it coming off the side of my house at gutter level, which is 18
feet above the ground, and attached to the gable end of the house.
The present attic window will become the door. I plan to do the
window to door conversion myself. The house is 26 feet wide so the
deck will also be 26 feet wide. The deck will extend 60 feet away
from the house. At which point, (because of the hill in back), the
end of the deck will be 42 feet above ground level and will cross over
my driveway. It will be built of all treated lumber and posts, with a
railing on all sides except by the house gable, and a stairway will go
down to the roof of my garage, then to the ground. The stairs will
turn on the garage roof, allowing for an 8 foot square sub deck on
that roof. It appears there will be a total of 29 to 32 steps. They
told me the longest posts on the end need to be 48 feet long.
$12,000 is rediculous !!!!
Well, I'll bite, even if your pulling my leg. The volume of material for
a deck that size is probably 7-8K alone ... let alone the labor cost.
48 feet above the ground!!!! What are you crossing ... a moat?
of a deck that seems to be above the house I'd say this guy is just
If not, OP should present his plans to the local planning inspectors. Do it
early on a Monday morning when they can really use a laugh.
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