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.
1 A concrete driveway with a single decorative element -- pigmented color, textured finish, a basic border -- can cost $6 -$12 a square foot, or $1,800 -$3,600 for 12'x25' or $5,760 -$11,520 for 24'x40'.