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.
Since actually putting in on the wall is labor-intensive, that is where prices can begin to rise. While the cost of wallpaper installation varies from home to home depending on the size of the space and the height of the ceilings, the average price ranges from $344 to $438.However, keep in mind that this range is for one room, such as the living room, and not the entire home.hile the cost of wallpaper installation varies from home to home depending on the size of the space and the height of the ceilings, the average price ranges from $344 to $438.