How much will your project cost? Get Estimates Now

How Much Does It Cost To Build A Deck?

Typical Range: $4,087 - $11,246

Find out how much your project will cost.

Are you a Home Improvement or Service Pro?

Connect with Homeowners

Reviewed on April 16, 2020 by Dan DiClerico, Smart Home Strategist and Home Expert.

Written by HomeAdvisor.

2021 Notice: Material Prices are Surging

Demand for siding has grown over the past year. And, as a result, manufacturers are increasing materials prices. Prices have gone up 5% to 10% this year, and many parts of the country are experiencing long delivery times. If you're planning a siding project, we recommend starting as early as possible in the season, preparing for potential price fluctuations, and allowing extra time to order materials.

Cost to Build a Deck

The average cost to build a deck is $7,654 with a typical range between $4,087 and $11,246. Labor and materials each make up roughly 50% of the budget for a total average cost of $30 to $60 per square foot.

Expect to pay a total of $16,000 for a 16-foot by 20-foot deck with footings, posts, railings with balusters and a built-in bench. Wood will average about $13,000, while composite materials increase the material price to $19,000.

Project Size in Square FeetAverage CostAverage Cost Range
Less than 200$7,000$3,000 - $14,000
200 - 500$14,000$6,000 - $35,000
More than 500$24,000$15,000 - $45,000

Second story installs and unique designs add 30% to 60% or about $8 to $20 per square foot to the base price. Your total budget depends on various factors including size, design, location, building materials, and extras to enhance functionality. You’ll also want to plan for any large additions like an outdoor kitchen, pool or hot tub.

Deck Cost Calculator

Let's calculate cost data for you. Where are you located?

Please enter a valid ZIP Code
National Average $7,654
Typical Range $4,087 - $11,246
Low End - High End $1,500 - $20,000

Want the most accurate estimates for your project?

Request Quotes

We are still gathering data for this location.

Want the most accurate estimates for your project?

Request Quotes
Cost data is based on actual project costs as reported by 14,992 HomeAdvisor members in .
the average cost to build a deck is $7,500 or $1,650 to $20,000.

Deck Material Prices

Materials cost anywhere from $20 to $45 per square foot. This includes all planking, beams, bolts and railings. For simple decking planks used for the walking surface, you might spend between $2 and $30 per square foot. We’ll talk more about pricing for decking in the next section.

Less expensive materials require more maintenance, like regular cleaning and resealing to avoid rotting and color changes. When choosing materials for your project, your options fall into three main categories: plastics, wood and composites.

Compare Quotes for Your Deck Project

Plastics & Composite Decks

  • Composite decking materials cost: $15-$36 per square foot. Includes moorings, railings, framework, hardware and other components
  • Decking boards only: $4-$13 per square foot
  • 320-square-foot structure: $4,800-$11,520, not including labor

Pressure-Treated Wood Deck Cost Per Square Foot

  • Pressure-treated wood materials: $15-$20 per square foot
  • Decking boards: $2-$5 per square foot
  • 320-square-foot structure: $4,800-$6,500 not including labor

This is an attractive material for those on a budget.

Elevated Concrete Deck Cost

Elevated concrete decks range anywhere from $30 to $75 per square foot depending heavily on your location, the dimensions of the slab and what finishing materials you choose. You or your contractor should have the structure designed by a licensed engineer. Hiring a residential structural engineer costs $350 to $725.

Finishing options include:

  • Paint
  • Stamped concrete.
  • Tile

Steel Deck Framing Cost vs. Wood

Steel framing runs 50% to 100% more than wood. The price continues to drop as it becomes more popular. Many installers use wood posts clad in steel with metal joists and fasteners. These systems are perfectly straight and never warp, rot or twist. Most composite decks, like Trex, use steel frames.

Compare Quotes for Your Deck Project

Decking Board Costs

Decking runs anywhere from $2 to $30 per square foot. "Decking" refers only to the boards that make up the walking surface of the porch. This cost does not include hardware, framing, concrete, posts or other supporting construction.

For a unique, elegant finish, try using concrete, steel or pressure-treated wood for your framing and finishing with a warm wood, such as redwood, mahogany, Ipe or bamboo. Each have their own costs, pros and cons.

Redwood Decking Cost

Depending on the grade, a redwood decking runs $5 to $30 per square foot. The average 320-square-foot redwood deck runs $6,400 to $12,800.

Redwood Deck Pros & Cons
Naturally pest resistantSourced from old growth forests (not renewable)
Fades over time to a beautiful silver greyProne to molds
Lasts for decades with proper careCan get UV damaged if not stained
Not prone to warpingExpensive

Mahogany Decking Price

Mahogany, an American hardwood, costs $8 to $11 per square foot for planks. Total material prices will vary because it's not used in the posts or framing. You might find this on concrete, steel, aluminum or pressure-treated framing.

Advantages & Disadvantages of Mahogany Decks
Low maintenance compared to pressure treated Moderately expensive
Rich, natural appearance Not always responsibly farmed
Takes stains well Higher maintenance than composites/metals


Ipe exotic hardwood costs $10 to $20 per square foot. Tight regulations and industry oversight can make the tropical woods harder to come by, but their durability is enough for some people to justify the price.

Ipe Hardwood Decks
Very strong, sometimes called “ironwood” Difficult to work with, expect to pay more for labor
Lasts 25+ years Doesn’t accept stain or preservatives
Resists mold, fire and physical damage Expensive upfront investment
Sustainably grown

Tigerwood Backyard Deck Cost

Tigerwood, another Brazilian and African hardwood, runs $7 to $15 per square foot. Tigerwood has a distinctive striped pattern from which it gets its name. It's slightly cheaper than Ipe and comes with many of the same durability qualities but with a different look.

Tigerwood Decking
Weather resistant Requires regular maintenance
Less expensive than Ipe Stainless steel fasteners needed
Has a striped appearance Hard to install, expect to pay more for labor
Lasts 25+ years Not always sustainably farmed

Bamboo Decking Costs

Bamboo runs $3 to $10 per square foot. It's actually a grass, not a wood. Bamboo is a fairly new material. When purchasing, be sure it comes from sustainable farms. Unscrupulous dealers may harvest from wild regions and damage natural habitats.

Bamboo Deck Pros & Cons
Cheap and durable Not good in northern climates
Environmentally friendly renewable resource Can be difficult to install
Mold and rot resistant Requires annual sealing
Consistent grain without knots
Compare Estimates For Different Deck Boards

Cedar & Other Wood

Cedar planks cost $3 to $7 per square foot. This naturally insect and UV resistant wood is only slightly more expensive than pressure-treated woods and comes without any of the chemical treatments. It's an excellent environmentally friendly softwood grown in North America and harvested sustainably.

Pros & Cons of Cedar
Rot & insect resistant Prone to warping
Moisture resistant Inconsistent color and patterns
Inexpensive High maintenance for longevity
Sustainable material Damages easily
Other woods, like Douglas fir and knotty pine, are inexpensive alternatives but require regular maintenance since they don't resist rot or insects like cedar does.

Aluminum & Metal Decking Costs

Aluminum runs $15 to $20 per square foot. Many of these systems are gapless, meaning they make a seamless waterproof roof for anything underneath. Because they are both waterproof and lightweight, they make great outdoor spaces that double as roofs above carports, patios and outdoor kitchens.

Aluminum Deck Advantages & Disadvantages
Lightweight Expensive
Long lasting and won’t rust Hard to paint or change colors
Don’t warp or twist over time like wood Dents and scratches easily

Fiberglass & Composite Decking

Composite decking is $12 to $22 per square foot. It's roughly 40% more expensive than wood.

Vinyl, Fiberglass or PVC Deck Pros & Cons
Never warps, shrinks or bends Expensive option
Maintenance free Can fade over time
Longest lasting material available Easy to gouge
Mostly recycled materials
Compare Estimates For Different Deck Boards

Cost Breakdown to Build a Deck

FactorAverage Cost for 320 Square Feet
Materials $8,500
Labor $7,000
Permits $500
Total $16,000

When calculating the cost of building a deck, you have to figure in more than just the wood. Be sure to factor in size, other construction and protection elements, taxes and insurance and all the little extras that make it not only usable but enjoyable!

  • Budget for property tax increases which vary by state and municipality.
  • You’ll also want to include any increases to your insurance premiums from increased home value.

Deck Size Cost Estimator

Most decks fall it the $30 to $60 per square foot range. However, other factors can impact this figure such as:

  • Regional pricing differences.
  • Complex designs.
  • Second story installs.
  • Material type chosen.

If you want a large or elaborate install, you will spend quite a bit more than for a small platform. It comes down to functionality. The following chart assumes a first floor install with railings, balusters, stairs and made from mid-grade materials. Most fall in the 300 to 400 square foot range.

Average Deck Costs by Size
DimensionsTotal Square FeetAverage Price Range
8x8 64 $2,560 - $3,840
8x10 80 $3,200 - $4,800
10x10 100 $4,000 - $6,000
10x12 120 $4,800 - $7,200
12x12 144 $5,760 - $8,640
12x16 180 $7,200 - $10,800
10x20 200 $8,000 - $12,000
12x20 240 $9,600 - $14,400
16x16 256 $10,240 - $15,360
14x20 280 $11,200 - $16,800
12x24) 288 $11,520 - $17,280
16x20 320 $12,800 - $19,200

Labor Cost of Building a Deck Per Square Foot

Most pros charge about $15 to $35 per square foot. Expect to pay more for Ipe, Tigerwood and other extremely tough-to-work-with woods.

Taxes & Insurance

The average wood deck increases a home’s value by about $10,000 or about 50% to 75% of your installation investment. Expect your property taxes to go up as well. You may also increase your insurance premiums.

  • Check with your local assessor’s office for tax data and information.
  • Call your insurance agent during the planning phase for premium increases.
  • Check with the contractor for a Certificate of Occupancy. This certifies the deck load capacity for a specific number of people.
  • Make sure the contractor carries insurance.
Get Quotes From Local Deck Builders
"If you're on a tight budget, keep the deck design simple and spend more on accessories like furnishings, an awning or umbrella, and an outdoor heater for extend the outdoor living season." Dan DiClerico, HomeAdvisor Smart Home Strategist and Home Expert.

Deck Designs & Cost

This guide covers basic rectangular and L-shaped designs. For complex, multi-level or wrap around decks, you can expect to add anywhere from 50% to 100% to your budget. Not only do complex designs require more time to install, they also present a higher amount of waste materials, planning and preparation.

Average Cost to Build a Deck With a Roof on It

It’ll run anywhere from $5,000 to $35,000 to build one with a roof on it. If you find that it isn't comfortable enough year-round, go the extra mile and build a roof, enclosure or sunroom.

Cost of Deck Installation with Stairs

Adding stairs runs $15 to $25 per square foot in addition to your base price. They’re time and labor intensive to install.

Floating Deck Cost

Floating decks run $20 to $60 per square foot. The only difference between the floating and standard type is attachment. Floating styles aren’t attached to the home and require a few additional support posts underneath the structure.

Second Story Deck Prices vs. Ground Level Decks

Adding one to a second story ranges from $40 to $50 total per square foot for additional posts and stairs. Accessibility issues can push that price even further up. For example, trying to install one over a garden or pool requires erecting additional scaffolding.

Ground level decks range from $10 to $20 per square foot or about half the price of a standard style. This is because they have no stairs and often no railings. Consider these a wooden patio.

Cost to Build a Roof Deck

You’ll spend at least $25,000 for a basic rooftop deck. With luxury upgrades, like an outdoor kitchen, you can quickly exceed $50,000. However, this type gets the best ROI. You can expect to recoup your entire investment. In southern climates, you might even see up to 1.5 times return.

Cost to Build a Balcony

Building a balcony runs $15 to $35 per square foot. Third story or higher can significantly increase the price. You’ll often recoup the investment when it comes time to sell.

Other Additional Features

Additional features run anywhere from a couple hundred to a few thousand. Depending on your location, budget and tastes, consider the following upgrades:

  • Lighting: $8-$30 each. Post lighting runs $30-$100+ each. Light fixture installation costs can run another $150 each
  • Heaters: $100-$300 depending on style and output
  • Outdoor misting systems cost $2,100-$3,400
  • Seating:
    • A “chat set” consisting of four chairs and a low table: $350
    • Chairs, a sofa, some end tables and a coffee table: $4,000
    • Bar counter: $500.
    • Awnings: $700-$1,000
    • Slipcovers: $20-$250
    • Replacement cushions: $30-$150
  • Landscaping costs $1,500-$5,300
  • Deck enclosure costs $8,000-$25,000

Staining, Sealing and Waterproofing.

Remember to include the price of routine maintenance in your project budget. Most maintenance includes power washing and resealing, painting or staining.

  • Pressure washing costs $150-$400. You’ll want to do this prior to resealing or painting.
  • Deck staining costs $550-$1,050. For the DIYer, the price of stain is around $30 per gallon.
  • Waterproofing or Sealing a deck costs $550-$1,300. Sealer runs $30-$40 per gallon.
  • Refinishing a deck costs $300-$7,000. This will remove all old stains, sealants and paints and sand the surfaces smooth. Finally, the pro will repaint, stain or seal the surface.
Get Quotes From Local Deck Builders

DIY or Hire a Professional?

If you build this yourself and any part of the workmanship turns out to be faulty, you may be liable for any resulting damages or injuries. If you do decide to build one yourself, you should be aware of these common risks and pitfalls:

  • Uneven boards
  • Rails and stairs that are improperly supported
  • Inadequate foundation support can lead to bending and bowing, or even to a catastrophic collapse
  • Building code violations costing time and money after it’s complete

Find a professional deck installer near you today. Always read reviews and check references. In the end, you’ll know you have a professionally built deck that is safe for family and friends.

Cost to Build a Deck Yourself

It’ll run you about 65% what it would be to hire a professional. While material and labor are split about 50/50, you can’t purchase materials at the lower prices a contractor can find. Also consider your time. It’ll take 3 to 4 weekends to complete.

Getting a Professional Deck Quote

Getting professional quotes is easy. Browse our deck installation directory for reviews and ratings. Expect any reputable company to give free quotes. But follow these tips:

  • Never take a quote from a contractor who doesn’t visit the site.
  • Always get at least 3 bids.
  • Check ratings and reviews.
  • Ask if they’re insured and bonded.
  • Ask to see examples of previous work.
Compare Estimates For Your New Deck


How much should I charge to build a deck?

You should charge anywhere from $30 to $75 per square foot depending on the difficulty of the install and the price of materials.

How much does it cost to build a small deck?

A small deck can run as little as $2,500 for an 8-foot by 8-foot area.

How much does a deck extension cost?

Adding onto an existing deck runs $15 to $50 per square foot. It depends on your location, the type of materials, and how complex the design is.

Are sustainable woods cheaper?

Sustainable woods aren’t necessarily any cheaper. Sustainable farms can provide at least some guarantee as to the health of the wood. Except for redwood, most natural woods used for decks are sustainably grown. However, make sure your supplier or contractor sources from farms that practice sustainable growing.

How much is an enclosed or covered deck?

Enclosed or covered decks range from $6,000 to $26,000, depending on size.

How much does it cost to build a patio deck?

A patio installation costs $1,850 to $5,200. Patios are inground areas typically made from stone, concrete or tile.

What does it cost to install a veranda?

Total to install a veranda, or a roofed wrap-around porch, starts at $50 per square foot.

Note: If you’re looking for Veranda brand composite decking, that’ll run you $10 to $20 per square foot for both materials and labor, not including the foundation or framing.

What’s the cost of repairing or replacing your deck?

Deck repairs cost $800 to $2,900 depending on the severity of the damage.

What should I do before estimating deck costs?

Always create a comprehensive plan to start. Consider talking to an outdoor living designer, deck contractor or engineer to help with this process. By creating a mock-up and paying attention to specifics before you commit to a contractor or building plan, you'll save yourself the cost and hassle of changing your mind once the project is underway.

Follow these simple tips to get started:

  • Experts recommend creating a mockup.
  • Put everything you intend to have on your deck where it's going to go.
  • Mark it off and measure.
  • Leave it all in position and note how much sun your location does or doesn't get. If you get too much or not enough shade, you may want to rethink the location.
Get Quotes From Local Deck Builders
Was this page helpful?

Was this page helpful?

How could this page be more helpful?

How do we get this data?

  1. Homeowners visit to find a top-rated pro to complete their home improvement project or repair.

  2. Once their projects are completed, the members log in to their accounts and complete a short cost survey.

  3. After compiling and organizing the data, we report it back to you.