Edge restraints for permeable pavers

[STL Ponds and Waterfalls]

What restraints have you used with permeable pavers. We use aluminum restraints but looking at other options ideas.

[TomG]

We use the same plastic edging that we use for normal paver applications. Except we build a 1 foot "border" of 3/4" processed gravel around the the perimeter of the stone permeable base and we spike into that. There is no real good product currently to sufficiently hold permeable pavers if your trying to anchor the edging in to the stone base.

However I do know that two of the major edge restraint companies are currently working on and are very close to completing an edge restraint that can be anchored into the stone base. I saw the prototypes at Hardscapes North America.

[STL Ponds and Waterfalls]

For commercial apps concrete curbs can be used but for the typical backyard we are kind of out of luck right now I guess. I do a lot of stone edging set in concrete so that could be an option.

[AztlanLC]

Permaloc has a nice aluminum edge for this application and a cross section which is say to be incorporated in the ICPI soon, it consists using geo grid wrap around the edge to hold it in place I have not use it but it looks would work pretty good

[STL Ponds and Waterfalls]

Geo grid huh! Another expense to add on to an already pricey product. I guess it will even out since the base is a little easier than traditional base construction.