Dick, I would pour it 5 inches if you plan on a 379 Pete. The truck will have 10-12K on the steering axle and that is on a small footprint. I also would use 1/2 inch rebar on 2ft centers with 3500 psi concrete. I have built 6 commercial steel buildings in the last two years and have not had any problems with the driveways or floors. Most were for commercial trucks or large motorhomes. My cost for material (3500 psi concrete, steel,sand) runs about $2.50 per square foot for a 5 inch floor/driveway. Anything above that is labor.
|