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.
It can be stamped to look like inlaid stone, tile or even solid marble, and it can be tinted to complement a house in almost any color. Decorative touches such as these will drive up the price of a concrete driveway, with costs ranging between $8 and $18 per square foot. Brick or stone borders are another accessory option, which add an average cost of $6 to $15 per linear foot to the total cost. Homeowners who live in colder climates have the option of embedding heated coils to help melt ice and snow. These may cost between $10 and $20 per square foot, depending on the heating system. Additionally, a protective sealant should in many cases be applied to the surface of a finished driveway. Some contractors include this sealing in their bid while others offer it as an additional option.