|reply to Lurch77 |
Re: Driving off concrete edge.
You won't want gravel, you want 'crusher-run' - it's got finer (from dust up to about 3/4") particulate, that lets it compact well... Mosten it, pack it well, and it'll be damn near as hard as the concrete when it dries out.
For the actual edge, as long as there's no voids or anything under the concrete, I don't think it would be an issue...
I'd think 10" or so would be way more then sufficient - I've got about a foot of crusher-run in my driveway, and my F150 hasn't rutted it up or shifted it in any way.