Hello everyone, for the outdoor areas, I’m planning to cover some sections with decorative gravel, probably Carrara, sized 15-25mm (0.6-1 inch). The base is crushed stone, compacted, and on top of that, there will be a weed control membrane.
What is the maximum slope I can lay the gravel on without it slipping due to wind and weather? Does anyone have experience with this?
I’ve read a bit, for example that it’s generally good to have gravel with mixed sizes so the stones lock together better. However, I prefer to use rounded gravel, so locking won’t be much of a factor here.
I’m also not very keen on using honeycomb grids.
So again, the question is not how steep I can make the slope, but rather how steep can I reasonably go with the gravel mentioned?
Thanks a lot, and have a great weekend everyone!
What is the maximum slope I can lay the gravel on without it slipping due to wind and weather? Does anyone have experience with this?
I’ve read a bit, for example that it’s generally good to have gravel with mixed sizes so the stones lock together better. However, I prefer to use rounded gravel, so locking won’t be much of a factor here.
I’m also not very keen on using honeycomb grids.
So again, the question is not how steep I can make the slope, but rather how steep can I reasonably go with the gravel mentioned?
Thanks a lot, and have a great weekend everyone!
P
Peanuts743 Nov 2016 20:10Over a length of about 270cm (106 inches), there is a height difference of approximately 180cm (71 inches). Two "terraces" will be created using retaining walls. However, I want to keep the walls as low as possible and instead slope the "terraces" using gravel. The question is, how steep can the slope be while still looking nice when using white gravel and possibly some plants, and up to what angle will the stones (about 25mm (1 inch) in size) remain stable?
I was thinking of a maximum of two walls at 75cm (30 inches) each, with the rest sloped, or preferably two walls at 60cm (24 inches) each and a steeper slope.
With two walls at 60cm (24 inches), that would mean about 60cm (24 inches) of height difference over 230cm (91 inches) length (270cm (106 inches) minus 2 times 20cm (8 inches) wall thickness).
I hope this is somewhat clear; I might upload a sketch if needed...
I was thinking of a maximum of two walls at 75cm (30 inches) each, with the rest sloped, or preferably two walls at 60cm (24 inches) each and a steeper slope.
With two walls at 60cm (24 inches), that would mean about 60cm (24 inches) of height difference over 230cm (91 inches) length (270cm (106 inches) minus 2 times 20cm (8 inches) wall thickness).
I hope this is somewhat clear; I might upload a sketch if needed...
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