this was like $8,800 back in like 2010-ish MoreRooms
26' x 42' installed, 12' on one side down to 8 ft where the boat is,
it's shorter at the back on the boat side too, like 26'
anchored to concrete 12" tubes x 4' deep pilers
like 10 of them & anchored on the retaining wall other side/right side, redheads
enameled/baked 18 ga. corrugated steel covering
& 8 ga. 2'x5" posts on 5' centers galv. all welded &
all engineered & rated for snow loads we have here
I was gonna put a lift & close it in, just not worth the cost, even for concrete
another one for the dually, outside my office, side of the house same materials
28' x like 12', was like $4,200 (IIRC)
had to watch them like a hawk they were sort of lazy
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the stuff in them OPs add is cheap stuff, thinner materials
better be braced well or more supports/rafters studs or it won't do well in snow,
even just 1 foot or so of snow, wind is a big deal with them too