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.
(16'x20') Cost to build a deck varies greatly by region (and even by zipcode). Get free estimates from deck, patio and porch contractors in your city. The average deck is constructed from three features - the planks, the framework, and the railings.