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.
As with a floating dock, you can make the dock out of any type of material, but make sure that it is capable of holding up in water. A typical dock of this sort will range from $35 to $60 per square foot. The labor costs will vary greatly which is why there is such a range in price.The material that the lake bed or ocean floor is made out of will determine how deep the pilings must go to support the dock.he barrels can only hold a certain amount of weight and the weight of the dock itself has to be taken into account. An average cost for installation and materials for this type of deck is about $20 to $30 per square foot.