RE: How much floor space does an average person occupy when standing. Worse case scenario - I usually use 2 sq ft per person - but that is tightly packed. RE: How much floor space does an average person occupy when standing. I want to thank every one for their answers.
Cost of a concrete driveway. Gary Salerno, owner of A+ Plus Concrete & Foundation Repair in Carnegie, Pennsylvania, says the average cost of a concrete driveway is $5,000 to $20,000, depending on several variables. He adds contractors who use the best materials typically charge $7 to $10 per square foot.
One simple stone driveway averages one to three dollars per square foot or about 600-1,800 dollars on average for a 12Ã50-foot or 600 square foot space for a good driveway. This is the basic price of a concrete driveway. The average for a two-vehicle driveway which is a quarter-mile long is about $21,000-$42,000.