Photo: Ivan Samkov

How much does a 12x20 deck cost?

Cost to Build a Deck by Size Size Pressure-treated wood Average cost per sq ft Composite decking Average cost per sq ft 12x12 $936 $2,016 12x20 $1,560 $3,360 14x20 $1,820 $3,920 16x16 $1,664 $3,584 3 more rows

decks.com - Calculate the Cost to Build a Deck

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How Much Does it Cost to Build a Deck?

The costs to build a deck can vary based on the type of material you use, as well as the square footage of the deck with those materials. For instance, pressure-treated pine is the least expensive option among your choices for natural wood decking, with a cost of approximately $3 to $6 per square foot. More exotic hardwoods – such as Redwood or Ipe can range between $7 to $15 per square foot. Composite decking, such as Trex, can cost between $5 to $13 per square foot, however, it requires less upkeep than most types of natural wood. Decking Material Low-End Cost (per square foot) High-End Cost (per square foot) Pressure-treated wood $3 $6 Exotic hardwoods $7 $15 Composite decking $5 $13

Cost to Build a Deck by Size

Costs for materials for a deck range according to a number of factors, including:

Square footage of your deck plan

Height, width, and depth of your planned structure

How elaborate your design is (for example, is there enough room in the budget for a shed roof?) The type of materials you plan to use and how much they cost within your particular region of the country Whether you’re wondering how much does a 14x20 deck costs, or if you want a smaller deck, such as a 10x10 deck, below are the average costs of materials to build a deck, depending on the square footage and type of material you plan to use. Please keep in mind that this does not include labor cost to build a deck and only takes into consideration the cost of materials, without railing.

Size Pressure-treated wood

Average cost Exotic hardwoods

Average cost Composite decking

Average cost 8x10 $520 $880 $1,120 10x10 $650 $1,100 $1,400 10x20 $1,300 $2,200 $2,800 12x12 $936 $1,584 $2,016 12x20 $1,560 $2,640 $3,360 14x20 $1,820 $3,080 $3,920 16x16 $1,664 $2,816 $3,584 Please keep in mind that these costs can vary according to a number of the factors we’ve mentioned before, as well as whether you plan to use those materials to build the deck yourself, or if you prefer to hire a contractor.

Use Our Free Deck Design Software

Design the deck of your dreams with our new deck design software. Drop-in octagons, make a multi-level deck, add a staircase and or wrap around stairs, and get a plan to submit for permits. See your deck in 3D then get a plan and suggested material list for your project. You will be designing in no time. Don’t be intimidated. This is a simple and fun experience designing a new deck.

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