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.
How much does it cost to install asphalt vs. concrete driveway? A basic asphalt driveway costs about $2 to $5 per square foot, according to CostHelper.com. That amounts to $720 to $1,800 for a basic standard-size residential, two-car asphalt driveway measuring 18 feet wide and 20 feet long. A stamped asphalt pattern, such as in the shape of bricks or stones, costs $3 to $9 per square foot, or $1,080 to $3,240 for a standard-size driveway. By comparison, the cost for a plain concrete driveway runs $3 to $10 per square foot, according to Costhelper, or $1,080 to $3,600 for a standard-size, two-car driveway. Customized concrete driveways with decorative elements can run $15 to $25 per square foot, or $5,400 to $9,000 total for the driveway.