1 From the distance from the center of the earth to the peak of the mountain.  As mountains are generally measured from sea level, Mount Everest 29,035 ft (8,850m) is considered to be king. However, there is a difference between the highest and tallest.
You can buy acoustic ceiling tiles in either 2'x2' or 2'x4' sizes. It will cost about $1,000-$1,700 to install an acoustic ceiling system in an average 12'x14' room. Most contractors will charge between $2 and $5 per square foot for labor. A modest set of 12, 2x2 tiles can cost from $25-$40. There are more extravagant tiles which can cost as much as $100 for a set of 12.
depending on fixture selections and overall level of finish desired an open structure ceiling is going to add $ 3 50 6 00 per square foot to your tenant improvement costs over typical acoustical ceiling grid and tile with 2 x 4 fluorescent lightinghile it is true you will be saving the cost of the acoustical ceiling installation which can be $ 2 25 $ 3 00 per square foot the cost of everything else that is typically hidden above the ceiling goes up dramatically one 2 x 4 fluorescent light will cover approximately 100 sf of space adequately