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Old 12-29-2018, 12:32 PM   #16
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Re: Retaining Wall


After doing a lot more looking, I think I want to go with wood, putting 4x4 posts in the ground and then fasten 2x6 lumber to the inside. Question is how deep will I have to bury the posts to make for a strong wall? The highest the wall will be is 2 1/2 feet but it'll be all gravel behind it and I'll want to pack it in so that it's solid. Should I put some sort of fabric or anything in between the boards and the gravel? Also, what would be the best way to fasten the boards to the posts?

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Old 12-29-2018, 01:15 PM   #17
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Re: Retaining Wall


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No I don't think so. Ugly
Shhh...don't tell these owners of $2 million home
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Old 12-29-2018, 01:54 PM   #18
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Re: Retaining Wall


Some people have more money than brains. I have neither.
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Old 12-29-2018, 02:11 PM   #19
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Re: Retaining Wall


I think I would want them close to 2 ft deep unless frost is deeper, then frost depth.
fabric between dirt and gravel, Hot dipped galvanised nails.
The post will be random so I would buy longer length, like 12 ft so you have less waste, ground contact wood only and paint the ends with treatment.
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Old 12-30-2018, 08:08 PM   #20
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Re: Retaining Wall


Got started on the digging of holes today and got the first load of gravel yesterday. Got two posts in the ground and four more holes dug with about 15 to go. I decided to go with 2'x10's for the wall and I think I'll be using nuts and bolts to fasten the boards to the posts. I like that better than nails or screws.
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Old 12-30-2018, 08:11 PM   #21
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Re: Retaining Wall


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Got started on the digging of holes today and got the first load of gravel yesterday. Got two posts in the ground and four more holes dug with about 15 to go. I decided to go with 2'x10's for the wall and I think I'll be using nuts and bolts to fasten the boards to the posts. I like that better than nails or screws.
Hard to imagine them falling off after it has been backfilled.
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Old 12-30-2018, 09:19 PM   #22
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Re: Retaining Wall


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Hard to imagine them falling off after it has been backfilled.
That depends on which side of the post one puts the boards.

On the rock side, pressure keeps them on, on the other side, pressure pulls them out.

Some people are short sighted and build wrong, seen it.

Using bolts with large fender washers will be the ultimate way to hold the boards , no matter which side they are put on.


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Old 12-30-2018, 10:29 PM   #23
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Re: Retaining Wall


Boards will be on the gravel side.
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Old 01-03-2019, 12:17 AM   #24
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Re: Retaining Wall


Got most of my posts in and now I am thinking I want to possibly put two deadmen in where the shed and the most gravel will be just for reassurance sake. Thing is if I'm going to have my posts on the outside of the wall, I am not sure how I will attach them to the wall. I don't want them to stick through my wall boards since I'm trying to keep them nice but I can't think of any other way that makes sense. Anyone with any ideas? Maybe I can put an additional post on the back side of the post, bolt them together then bolt the deadmen to those posts. Maybe that could work.
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Old 01-03-2019, 01:31 AM   #25
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Re: Retaining Wall


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Originally Posted by clancaster23 View Post
Got most of my posts in and now I am thinking I want to possibly put two deadmen in where the shed and the most gravel will be just for reassurance sake. Thing is if I'm going to have my posts on the outside of the wall, I am not sure how I will attach them to the wall. I don't want them to stick through my wall boards since I'm trying to keep them nice but I can't think of any other way that makes sense. Anyone with any ideas? Maybe I can put an additional post on the back side of the post, bolt them together then bolt the deadmen to those posts. Maybe that could work.
Did you watch the video in post #2 ?
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Old 01-03-2019, 08:07 AM   #26
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Re: Retaining Wall


Yeah I did but that type won't quite work for me. They are using dirt to backfill the whole thing. Sticking these things in the gravel won't do anything at all since it'll be the gravel pushing against the wall. I'll be backfilling with mostly gravel, especially right up against the 2x10's that I'm using for the wall so I need to go further back into the ground. That's why I need to use the more typical T shaped ones that will reach further back under where the shed will eventually be.
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Old 01-03-2019, 08:15 AM   #27
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Re: Retaining Wall


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Yeah I did but that type won't quite work for me. They are using dirt to backfill the whole thing. Sticking these things in the gravel won't do anything at all since it'll be the gravel pushing against the wall. I'll be backfilling with mostly gravel, especially right up against the 2x10's that I'm using for the wall so I need to go further back into the ground. That's why I need to use the more typical T shaped ones that will reach further back under where the shed will eventually be.
Use their design just longer so you go back a couple feet into the dirt,
It is the fill behind the top of the wall that will be pushing so the weight of the grave would stop that.
But if you want the other style I would just bolt it to the side of a post and notch the 2x around it.
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Old 01-04-2019, 12:22 AM   #28
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Re: Retaining Wall


I just figured since the gravel will be what would push against the wall that having the deadman buried in almost only gravel really wouldn't serve a purpose. I could be wrong though. I'm now thinking I will be using nails to fasten the 2bys to the posts and to get the deadmen attached to the wall I will bolt a post to the inside of the ones I'm wanting to put a deadman on so it'll be outside post, 2by and inside post just bolted through the 2by and outside post. Then I can bolt the deadman to the inside post and that should relieve any worries I have about it not being strong enough. Should I use nails instead of screws? The boards will be on the inside so I know they won't go anywhere if they're nailed on but I'm kind of iffy on beating on these posts to attach the boards.
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Old 01-04-2019, 01:16 AM   #29
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Re: Retaining Wall


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I just figured since the gravel will be what would push against the wall that having the deadman buried in almost only gravel really wouldn't serve a purpose. I could be wrong though. I'm now thinking I will be using nails to fasten the 2bys to the posts and to get the deadmen attached to the wall I will bolt a post to the inside of the ones I'm wanting to put a deadman on so it'll be outside post, 2by and inside post just bolted through the 2by and outside post. Then I can bolt the deadman to the inside post and that should relieve any worries I have about it not being strong enough. Should I use nails instead of screws? The boards will be on the inside so I know they won't go anywhere if they're nailed on but I'm kind of iffy on beating on these posts to attach the boards.
If you can knock the post loose with a hammer, you are in trouble,
What pushes the wall over is water filling the dirt behind the wall that can't drain adding a ton of weight or freezing really does it. So your drain rock solves most of that. So really what ever weight you put behind the wall should be all it ever has to deal with.
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Old 01-04-2019, 06:52 AM   #30
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Re: Retaining Wall


A framing nail gun, won't have any impact on the posts, if nailing.

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