Concrete thickness for truck

[5er4ever]

Opinions sought:

I want to add a pad beside my house 12x20'
I want to avoid all the prep work (sub base, gravel, tamping and hauling away dirt... etc.).

It is now a 50yr old normal lawn with nice grass!

Basic question: Do you think it would be OK If I box it in with 2x6 and pour 6" with pressure cracks every 5' with a 1" slope for rain water to run totally away from the house.

Only thing ever to be parked on it is my 2500 truck (maybe with a load of wood in back once in a while). 7,000lb + wood should be under 10k.

Don't want a lot of overkill. Just don't want it to look bad in a few years. Near Toronto.

Thank you

[korbe]

Frame it in directly over the grass? IMHO, 5x5x6" concrete slabs can distribute a bunch of weight if the sub-base is firm and unforgiving. I would put the difference between the cost of 6" vs 4" in the site prep. At least get the sod and loamy soil out of there.

[darsben1]

NO!
It will look bad fairly quickly.
Ground heave because of sub-concrete moisture will do you in. Specially on Clay soil.
Do you think companies would go to all the trouble of doing site prep if it was not necessary.

See
http://web.mit.edu/parmstr/Public/NRCan/CanBldgDigests/cbd026_e.html