Wouldn't it be a lot more economical to have a load of gravel delivered rather than buying bagged gravel? 2 1/2 tons in a dump truck. Or is this an exercise thing?
I missed that question way back when you posted it.
Its surprisingly economical. Home Depot sells me a 0.50 cu/ft for just under 5 bucks (Vigoro pea pebbles). As the project has progressed over time I have bought a whole pallet of 100 bags for $4.48 per bag, so 50 cubic feet runs $537 with the $89 delivery fee added.
If instead I have the cheapest gravel delivered locally by dump truck, the minimum is 3 tons / 2.5 cubic yards (68 cubic feet) for about $860. 5 tons / 4.1 cu yds is $1075. This nets me a pile of gravel in my driveway I have to deal with by the shovelful. WAY more difficult than lugging a self-contained bag (even dozens of them) around my house and in some cases over a fence with no gate.
But ignoring handling and looking only at cost, without the volume discount (49 bags+) I am paying roughly $10 per cubic foot bagged, versus $12.65/cu. ft. for 3 tons delivered. I have to go to 5 tons / 4.1 cubic yards to get my cost below what Home Depot is charging me for single bags ($9.70 per cubic foot). I have probably spread around about 6 tons (132 cu ft) which would be about $1123 delivered, or $8.50 per cubic foot.
So buying it by the bag at the discount place is easier to handle by the bag, I can do it in small bites and not have to live with a 6 ton mound of gravel in my driveway.
And I get the exercise to boot
I would prefer to be able to carry more than 2 bags at a time of course, but its just not safe for my frame and wheels to do 150 lbs of gravel, whereas it is ok at 100. So I go slow, get a good ride in and it costs me $10 per trip.
At this point I have everything done and am now just replacing gravel that has washed away a bit, resettled itself a bit or making it deeper where I want to really be aggressive about reducing rain erosion.