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Old 06-18-2017, 02:05 PM   #1
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question for small retaining wall


I have a deck that sticks out adjacent to a shallow slope. Not only does the ground outside the deck slope down as the deck goes out, but the ground under the deck itself is even lower--I wish I could get a lot of fill in there, but doing so would be a nightmare.

So, I have a decent drop-off in the ground where it goes under the deck. I'd like to shore this up a bit, especially so I can build up the ground a bit and cover over an ugly opening.

A picture of the area is below. The main spot that needs a retaining wall is about 9-11 feet long, depending on how I approach it. The tricky part is that I basically need the wall just under the deck, which makes certain steps (e.g., hammering in rebar) all but impossible.

One thought I had was to get 6x6s and attach a couple to the two pilings you can see in the picture, which are about 9' apart, using the pilings as a brace to keep the wall up. I don't need much height--two 6x6s at most, even with the bottom 6x6 half-buried. I'd probably need another piece angling to the left, to raise up that end, too. From how I figure it, the wall only has to come up about 5-6" from the lowest point of ground level.

FWIW, I also have a load of those hunks of concrete you can see in the shot, under the deck (leftover from an old driveway demolition, years ago); I was wondering if I could cement those together into a wall.

At the far left of the shot you can just see a raised planter; I'd have just enough room to stick the 6x6 between it and that piling, but any attachment to the piling would have to come in from behind/to the sides.

I don't need to do anything to the right of the piling in the foreground.

Looks don't matter here--no one's really ever going to see the wall. How should I approach this?
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Old 06-20-2017, 05:30 PM   #2
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Re: question for small retaining wall


I guess the question is why? you mention you want to cover an ugly opening, then later say looks dont matter since no one will see it... just confused is all...
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Old 06-20-2017, 05:50 PM   #3
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Re: question for small retaining wall


The retaining wall, because it will only be facing under the deck, will be invisible. The opening in the side of/under the deck is not.
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Old 06-20-2017, 05:55 PM   #4
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Re: question for small retaining wall


why not just put a skirt around the opening? or use those stack stones on a bed of gravel?
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Old 06-20-2017, 06:33 PM   #5
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Re: question for small retaining wall


Because of the other reason I gave for a wall: a decent drop-off that needs to be shored up. I called it a retaining wall because it's not there to hide the opening but to prevent soil loss.
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