How to Build a Wood or Composite Deck

The cost to build a deck can vary depending on its size and the materials you use. A 350 square foot wooden deck may cost $6,125, while composite decking materials for a deck of the same size may cost roughly $9,625. Although composite decking initially costs more, its longevity and resistance to mold, mildew, stains and fading means it requires less upkeep that homeowners recoup their investment over the lifetime of the deck. While these figures offer a ballpark range on the cost of material, they do not take into account the time you’ll spend building your deck or the cost of labor.

Once again, the time it takes to build your deck depends on how large or elaborate it is. A simple single-level deck can take two people 1 to 3 weeks to complete, depending on their skill level. A larger, multi-level deck with stairs, built-in seating, and embedded lighting may take a few weeks longer. Smaller, lower-to-the ground decks may be a suitable project for beginner DIYers, however, more intricate decks may not be the best building project for those with beginner or more intermediate-level skills. If you lack the skills -- or patience -- to build a deck yourself, hiring a professional may be in your best interest.