Table of Contents

## How do I calculate building a deck?

To get the square footage of a single deck board, first convert the width from inches to feet. For example, 5 1/2-inch wide board divided by 12 equals . 46 feet. Now, calculate the square footage of one board by multiplying .

## How much does it cost to build a 16×20 deck?

On average, you can expect to pay about $20,000 for a 16 x 20 foot composite board deck.

## How much does it cost to build a 12×20 deck?

2. Deck Cost Estimator by Size

Dimensions | Total Square Feet | Average Price Range |
---|---|---|

12×12 | 144 | $5,760 – $8,640 |

12×16 | 180 | $7,200 – $10,800 |

10×20 | 200 | $8,000 – $12,000 |

12×20 | 240 | $9,600 – $14,400 |

## How much does it cost to build a 12×16 deck?

12×16-foot Raised Deck: You could build a 12×16-foot treated-lumber raised deck with stairs, for about $3,100 in materials. Hiring someone to do the work for you brings your total cost to $3,700-$9,500.

## How much wood is needed for a 12×12 deck?

A 12 -by-12-foot deck will need 144 lineal feet of decking. The amount of individual boards will depend upon the size and type of decking your choose and the amount of space you plan to leave between decking boards.

## How do you calculate wood for a deck?

Length x Width = Square footage of decking needed. Square footage is calculated by multiplying length by width. Simple enough, but decking is sold by the linear foot not by the square foot. To convert it you need to know how many square feet is in a linear foot of decking.

## How do I estimate the cost of a deck?

The average cost to build a deck is $25 per square foot with most homeowners spending between $4,380 to $10,080 total. An entry level deck with basic materials costs $15 per square foot, while a deck built with premium materials costs $35 per square foot.