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  Matt Johnson October 28, 2016 at 4:23pm

  In my opinion you do need something like this pinned down. it only takes 1-2 people slightly clutch happy and your limestone will be flicking all over the place. on quite a few projects over the years i have used products like this and all though occasionally you do see the grid through the gravel where it has spread due to high volumes of traffic i find it is very good indeed along as it is properly pinned down and fixed together.
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  Ben Jakes October 28, 2016 at 5:09pm

  I'd put it to the customer with the cost difference, otherwise she may think a cheaper quote is better. That said,  I'd say you should be ok so long as you watch out for a few things.

  1. Proper mix of fines and solids in the scalpings.

  2. Proper compaction. Tracking in with a digger is no good for this sort of thing. Diggers are on tracks to reduce ground pressure, people tend to forget this. Hire a vibroll and you'll be amazed at the difference over a whacker plate.

  3. A decent layer of large size gravel that will 'lock' together better than pea shingle. This will protect the base.

  I had a stroke of luck the other week, picked up an old Stotthart and Pitt pedestrian vibroll with a crank start Lister for £200. £40 worth of push-pull cable and a few dabs with the welder to adjust the mounting brackets and she's a great bit of kit. Couldn't go back to the whacker plate for anything more than a few square metres.
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    Thermo > Ben Jakes October 28, 2016 at 8:12pm

    agree with ben and cant see it will be much different from a domestic driveway. did a job with the gridlock system last year and wasnt that expensive or hard to use. i think we got it from fleximas