Gradients on Driveway for aggregates

[pcsparky]

I've been looking at this grid system for containing aggregates or grass.

http://www.aco-technologies.com/pro...18&PHPSESSID=b86bf2d4adb780ed986e101336bde44e

It states on the website that it is suitable for gradients of 5% or more if pegged. Our drive is 10% gradient. Does anyone have any experience with this type of grid? I'm wondering whether at 10% the gravel would find it's way down the drive too much.

 

[noseall]

I think the gradient limitations has more to do with tyre grip (in the wet) than it has to do with aggregate slumping to the lower level.

 

[pcsparky]

Thanks Noseall. If that is the reason perhaps I could get away with this type of system. The slope doesn't seem too steep and we manage in winter when it seldom snows.