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.
Cedar, for example, is soft to the touch and doesn't splinter or crack as much as pine. Decks built with cedar can cost between $11 and $26 per square foot, Ford says. Man-made or composite materials are among the most expensive materials available, sometimes as much as $50 per square foot.