Not sure if I'm posting in the wrong forum now. A moderator can move it if so. Couldn't find a suitable one for just walls.

I'm planning to build a wall around the house this summer. On the side facing the neighbor, it will serve as a retaining wall about 40-110cm high (the land slopes).
About 30 meters
On the front, it will just serve as a boundary for the property and for appearance's sake. 20-40cm high and perhaps 15 meters.
I'm also thinking that the front "wall" should be built with a fence on top.

I'm currently considering Benders Labyrint Maxi. Partly because it seems easy to build myself, just stack on top of each other and glue (geogrid where it becomes a retaining wall) and partly because I can buy it reasonably cheap (30kr/stone).
And because I think it is a completely okay wall aesthetically.

Unfortunately, I will never see the retaining wall from my side of the house as it is towards the neighbor. Which feels sad and perhaps unnecessarily costly. But since I can buy it at a good price and do it myself, it still feels like a good compromise as it will be uniform and you will see it from the front of the road as it runs all the way to the street. Additionally, the neighbor has the same wall, so it feels more "right" for him too.

Is there anyone here who has built a retaining wall who can share some experiences? Preferably from the same type of stone I'm thinking of using.
But others too. Since I've never done this before, I'd like to know some tips and tricks from you more experienced ones and what "traps" one might fall into. Maybe the Labyrint Maxi isn't suitable for this even though Benders claims it can handle 90cm with glue, geogrid, and the angle of the wall. Maybe there are better, more stable alternatives?

The nightmare would be if it gives way in the future when the soil is pressing against it so that it needs to be redone. I do NOT want that!

So please share your experiences! :)
 
bumping...
 
No one who has built a retaining wall out of labyrint stone?? :(
 
I built a 20m, approximately 1m high wall with Benders megastone 150 two years ago. It was easy and smooth; I packed about 20 cm of 0-30, leveled it with a couple of centimeters of 0-18 to get the height reasonably right, and then placed the stone in 2-5. What took time was setting the first row so that they were level. Then the other stones were just stacked on top; the advantage with them was that they had a flange at the back and didn't need geo-grid or gluing.
 
Yes, that sounds really convenient. I actually would have preferred to use such a solution instead, the problem is that we want the labyrinth stone around the rest of the house, and then it doesn't look so nice to use another stone on one side! :/ So I "have to" glue and use the geogrid method... I'm just a bit skeptical that it will hold.

Did you place a drainage pipe behind? At what level, if so, below the first row of stones or at the same level as the first?

It would be nice to hear from someone who built a 90cm high retaining wall 5 years ago with the labyrinth stone and that it still hasn't budged. :)
 
Dug a wider trench and laid the hose at the same level as the bearing layer, i.e., under the first row of stones. The closest 20 cm behind the wall, we refilled with 11-16 then geotextile fabric and existing materials.
 
It's quite high (1.1m). Is Labyrint maxi with geogrid okay there?

The stone is fairly easy to build with (difficult to cut) and glue together with PU700 (I have such a retaining wall but only about 0.5m high). I'm a bit doubtful about how the glue behaves after 10-20 years though, is it really something to rely on?
 
Benders themselves say 90cm if glued, set with a slight inward tilt towards the ground, and with geogrid in between. Whether the glue will hold after 10-20 years, I don't know? 😳 But since they write that it should be built that way, it should work?

Where it's 110cm, I might build the wall to 110cm and then slope the ground down towards the wall so that the pressure from the ground doesn't exceed the recommended 90cm. This way, the wall will still appear straight and nice from the outside.

Then I guess you could come up with something for the slope, maybe plant some vegetation or similar so that the slope isn't visible.

Or do you dare to fill all the way, do you think?

I will also be casting pillars behind for a fence that will be there. I'm considering whether the wall can be anchored to the pillars to provide additional support somehow. What do you think about that, and how would one do it if so?
 
Which adhesive do you recommend? PL400 or PU700?
 
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