So Z6 = [(1 + z1)(1+ future rate at time 1)(1 + future rate at time 2)(1+ future rate at time 3)]Â¼ - 1. This equation states that the two-year spot rate depends on the current six-month rate and the following three six-month spot rates.
Decking Prices. Once you determine what kind of decking materials you'll need to build the structure, it's time to get down to price. While the average cost to build a deck averages between $4,000 and $10,000, that doesn't account for the materials.Here is the average cost of each decking material, broken down by average price range per board: It's important to know what board sizes you'll need to purchase for your deck.ecking Prices. Once you determine what kind of decking materials you'll need to build the structure, it's time to get down to price. While the average cost to build a deck averages between $4,000 and $10,000, that doesn't account for the materials.
Now you know the average cost to build a composite deck, which includes the labor and material, and whatâs involved, so you can decide to do it yourself or hire a contractor.o build a 300-square-foot ground level deck made of Trex, a composite material made of reclaimed wood and plastic, a contractor will charge $7500, which includes the labor and material.