There have been many ice ages during the last 2.6 million years but when people talk about the Ice Age, they are often referring to the most recent glacial period, which peaked about 21,000 years ago and ended about 11,500 years ago.
It costs roughly â¦ $11-$13 for the materials and contractors average about $5-$8 per square foot for labor, not including steps. For example, my company charges approximately $18 per square foot to build a deck.
Plus, the labor to install a deck will be nearly equal to the cost of materials. Patios are flat, ground-level structures that can be made of a variety of materials, ranging from stamped concrete to laid brick pavers.