Hello,

We built a wall in early 2017 that looks like this:

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Behind the wall, there is now a Yew hedge.

As you can see, a coping stone is needed for this wall, and the initial idea was to buy a cheap second-hand stone, but it turned out to be very difficult to find something suitable. In our case, we wanted a dark stone to match the house. We also wanted the stone to maintain its dark color without lime efflorescence or similar.

We found a stone from Flisby that was the right size at an okay price:
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https://www.flisbyab.se/produkter-u...ranit-highline-90x15/granit-highline-antracit

The price for this stone is about 5000 kr including stone for the towers and shipping.

We also checked with a stonemason, but the price there lands at 20,000 kr.

In contact with the stonemason, they said it wasn't very nice with straight-cut surfaces for a wall like ours?

1. What do you think about the stone, does it suit our wall? Do you have any other better suggestions within reasonable money?

2. When would it be reasonable to lay the stone? Is there any point in laying it now that it's cold and wet, or would it be better to wait until spring? However, I've started to see algae on the wall, so we will probably need to clean it with a pressure washer or similar.

3. The wall is laid with exterior adhesive to even out, and then stone adhesive. Our idea is to cover some holes in the towers with adhesive and then also use adhesive to lay the coping stone evenly. It can easily become slightly uneven when laying stones on top of each other without spacing. How would you have done it?
 
L
1 The dark stone makes a good contrast against the white, all contrasts should be distinct.
2 Wait until spring, moss does not grow in winter.
3 The issue with algae is probably difficult to avoid, but keep in mind that the cap should overhang about 3 cm on the asphalt side and about 5 cm on the grass side, and tilt slightly (about 1 cm) towards the grass side, then most of the water will run off outside the wall, reducing moss growth.
You don't need to fill the columns unless you plan on bumping into them with a car, in which case they might collapse. Place a full slab over as a roof, with a few cm overhang and tilt backwards.
Water has an internal tension and tends to go around edges; I used a diamond blade and cut a V-groove on the underside about 10 mm in, which makes the water drop off and end up 80% outside the wall.
 
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snowjim
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L Liteavvarje said:
1 The dark stone will provide a good contrast against the white, all contrasts should be distinct. 2 Wait until spring, moss doesn't grow in winter. 3 It's likely hard to avoid algae, but remember that the top edge should hang about 3 cm over on the asphalt side and about 5 cm on the grass side, and tilt slightly towards (about 1 cm) the grass side, then most of the water will run off outside the wall, reducing moss growth. You don't need to fill the towers unless you plan to bump them with a car, then they might collapse. Place a whole slab over as a roof, with an overhang of a few cm and slant backward. Water has an internal tension and tends to go around edges, I took a diamond blade and cut a V-groove on the underside about 10 mm in, then the water releases and ends up 80% outside the wall.
You've clearly thought this through =)

The wall is 11 cm wide, and that's considering the placement surfaces where they stand on each other. If you account for the stone being rounded, it will probably be quite a bit more.

The stone we've selected is 15 cm, so the overhang won't be more than 4 cm in total, which split evenly is 2 cm on each side. Can't that be enough?

The idea is to fill the towers to make them more stable. There's a thought of possibly installing lighting, but in that case, I'd cast in a VP pipe for wiring.

What do you think about the pieces we plan to lay being straight-cut and not hewn with uneven edges? Does that perhaps look strange?
 
L
Can you imagine that for a little wider it's better, 4 cm in total is a bit thin, as there's not much left for the backside for a droppis, and having edge to edge on the front is not attractive
It should have a bit of a roof look to it
No fun to be annoyed afterwards with something, it will be an eyesore
 
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