Deck Building Cost – Average Prices + Saving Tips [2026 Data]

Building a new deck costs $8,321 on average in 2026, with most homeowners spending between $4,339 and $12,653. According to Angi’s 2026 deck cost data, those figures come from more than 20,000 reported deck-building projects across the United States.

A professionally installed deck generally costs $30 to $60 per square foot, although larger composite decks, elevated structures, and custom designs can easily exceed that range.

Deck size and material are the biggest cost factors, but labor, foundations, stairs, railings, and permits also affect the final price. Here’s what you should budget for in 2026 and where you can save without compromising the deck’s structural safety.

Average Deck Building Cost in 2026

Cost Category	Average Price
National average	$8,321
Typical homeowner spending	12,653
Standard installed cost	60/sq. ft.
Pressure-treated wood deck	50/sq. ft.
Composite deck	80/sq. ft.
Professional labor	35/sq. ft.

Sources: Angi’s 2026 deck cost estimates and HomeGuide’s 2026 material-specific installed costs. Labor is already included in the installed prices and should not be added again.

A simple ground-level wood deck falls near the lower end of these ranges. Larger raised decks with composite boards, custom railings, and multiple stairways cost considerably more.

The $8,321 national average is a useful starting point, but your deck’s dimensions and design provide a much better basis for an actual budget.

Deck Building Cost by Size

Square footage is the easiest way to estimate a starting budget. Multiply the deck’s length by its width, then apply an estimated installed price per square foot.

Deck Size	Square Footage	Estimated Cost
10 × 10 ft.	100	6,000
10 × 12 ft.	120	7,200
12 × 12 ft.	144	8,640
12 × 16 ft.	192	11,520
12 × 20 ft.	240	14,400
14 × 20 ft.	280	16,800
16 × 20 ft.	320	19,200
20 × 20 ft.	400	24,000

Calculated using 60 per square foot for a standard professionally installed deck. Figures are planning estimates, not contractor quotes. Complex foundations, premium finishes, and additional features can increase costs.

For example, a 12 × 16-foot deck provides 192 square feet of outdoor space. At $45 per square foot, the estimated construction cost is $8,640 before any separately priced extras.

Smaller decks generally cost less overall, although they can have higher per-square-foot costs because contractors still need to cover transportation, equipment, and setup.

Deck Building Cost Breakdown

Here’s what you need:

1. Decking Materials

Pressure-treated wood remains the most affordable option for most residential decks. Composite decking costs more initially but requires less maintenance. Cedar and premium hardwoods offer different appearances and durability characteristics.

Here are average 2026 prices for common decking materials.

Deck Material	Material Cost per Sq. Ft.
Pressure-treated wood	5
Cedar	7
Redwood	35
Composite	22
Ipe hardwood	20
Aluminum	20

Source: Angi’s 2026 material estimates. These are decking-material prices, not costs for a completed deck. Framing, footings, fasteners, installation, and other components are additional.

Pressure-Treated Wood vs. Composite Decking

Pressure-treated wood is our recommendation for homeowners prioritizing the lowest initial construction cost. It provides a practical outdoor surface without the premium associated with composite or exotic hardwoods.

However, wood needs periodic cleaning, staining, or sealing to help protect it from weathering.

Composite decking is worth considering if you’re planning to stay in your home for many years and prefer less maintenance. Most composite products don’t need staining or sealing, although regular cleaning is still necessary.

The bigger question isn’t simply which material costs less to purchase. It’s how much you’re willing to spend maintaining the deck over its lifetime.

A less expensive wood deck can make financial sense if you’re comfortable maintaining it. Composite becomes more attractive when convenience matters more than the initial price difference.

For additional material-specific estimates, see HomeGuide’s deck pricing comparison.

2. Labor and Installation

Professional deck-building labor typically costs $15 to $35 per square foot in 2026. Labor is one of the largest expenses because constructing a deck involves much more than attaching boards to a frame.

Contractors must prepare the site, install footings, construct the support system, attach the decking, and complete safety features.

Several conditions increase labor costs:

• Difficult access to the backyard
• Sloping or uneven terrain
• Elevated construction requiring additional supports
• Complicated deck shapes and multiple levels
• Custom stairs, railings, and built-in features

Location matters, too. Labor rates in expensive metropolitan areas are generally higher than those in smaller communities.

We recommend getting at least three itemized contractor quotes. A lower price isn’t necessarily a better deal if the contractor excludes framing, footings, or other important work.

3. Deck Style and Foundation

Two decks with identical square footage can have very different construction costs.

Ground-Level Deck

Usually the most economical design because it can need fewer stairs, shorter supports, and less complicated construction. Proper framing, drainage, and foundation requirements still apply.

Raised or Second-Story Deck

Costs more because taller supports, bracing, stairs, railings, and stronger structural connections increase material and labor requirements.

Multi-Level or Wraparound Deck

Generally the most expensive design category. Additional framing, separate levels, complex layouts, and extensive railings increase the construction budget.

Freestanding decks also need independent structural support instead of relying on a ledger connection to the house. Depending on the design, the additional footings and beams can offset savings from simpler construction.

For most homeowners working with a limited budget, a straightforward rectangular deck is the most cost-effective choice.

4. Additional Features and Hidden Costs

Deck accessories can significantly increase the total price, especially when they involve electrical work or changes to the structure.

Additional Expense	Estimated Cost
Deck building permit	500
Outdoor electrical outlet	300
Outdoor lighting fixture	30+ each, fixture only
Retractable awning	3,500
Outdoor furniture	$500+
Outdoor fireplace	8,000

Source: Angi, 2026. Prices are broad estimates; installation, wiring, structural modifications, and other fees may be additional.

Railings and stairs deserve particular attention. Their cost depends heavily on height, length, material, and local safety requirements, so request separate line items for both.

Other expenses can include removing an existing deck, excavating for footings, improving drainage, relocating utilities, and handling difficult soil conditions.

If you’re replacing an older structure, compare the new construction quote with the cost of repairing or replacing your existing deck. Reusing sound components can reduce spending, although a qualified professional should first verify that the remaining structure is suitable.

We recommend setting aside 10% to 15% of your project budget for unexpected expenses.

For a $10,000 deck, that means keeping an additional $1,000 to $1,500 available.

DIY Deck Building Cost vs. Hiring a Contractor

Building a deck yourself can reduce expenses because you’re avoiding much of the professional labor cost. For a 200-square-foot deck, the $15 to $35 per-square-foot labor range represents approximately $3,000 to $7,000.

However, that isn’t necessarily your final savings. You’ll still need materials, tools, equipment, inspections, and potentially professional assistance with structural work.

A basic ground-level deck is more manageable for an experienced DIY homeowner than a second-story structure.

For larger or elevated decks, we recommend hiring qualified professionals to handle the footings, framing, structural connections, and safety features. The American Wood Council’s deck construction guidance provides useful structural references, although local building codes ultimately govern construction requirements.

6 Ways to Save Money on Deck Building

You don’t necessarily need the cheapest materials to build an affordable deck. Good planning and reasonable design decisions can reduce spending without sacrificing quality.

1. Choose a Simple Rectangular Design

Rectangular decks are generally cheaper to build than curved, wraparound, or multi-level designs.

Straight cuts, uncomplicated framing, and standard board lengths reduce both installation time and material waste.

If you need inspiration without committing to an expensive custom layout, explore our backyard deck design ideas.

2. Reduce the Square Footage

Consider how much outdoor space you’ll actually use.

A 12 × 16-foot deck offers 192 square feet. A 16 × 20-foot deck provides 320 square feet.

At $45 per square foot, the larger option costs approximately $5,760 more.

That’s a substantial difference if you only need enough room for a dining table and a few chairs.

3. Compare Wood and Composite Costs

Pressure-treated lumber generally provides the lowest upfront price. Composite decking reduces maintenance requirements but costs more to purchase.

Ask contractors to quote both options using the same dimensions and structural specifications. Compare the upfront prices alongside expected maintenance costs.

4. Schedule Construction During Slower Months

Deck-building demand typically increases ahead of the warmer months.

Some contractors offer more competitive pricing during slower periods, particularly in fall or winter. Availability and weather conditions vary by region, so ask local contractors about scheduling discounts.

5. Get Itemized Quotes

Request estimates from at least three contractors and confirm that each includes comparable work.

Pay particular attention to foundations, framing, decking, railings, stairs, debris removal, permits, and cleanup.

A quote that’s thousands of dollars cheaper isn’t much of a bargain if essential work gets added later.

6. Finalize Your Plans Before Construction

Changing your deck’s location, dimensions, or structure after work begins can increase costs.

Check setbacks, property boundaries, HOA requirements, and permit rules before purchasing materials or scheduling construction.

Our advice is to save money through smarter planning and simpler design, not by reducing the quality of structural supports or safety features.

Deck Building Permits and Site Plan Costs

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Many deck construction projects require a building permit, particularly when the structure is attached to the house, elevated, or large.

Permit fees commonly range from $230 to $500, although local charges can be higher.

Small, freestanding, low-height decks are exempt from building permits in certain jurisdictions. However, permit exemptions don’t automatically remove zoning, setback, or HOA requirements.

For a detailed explanation, read our guide to deck building permit requirements.

What Drawings Are Required?

Your building department may request a site plan, structural drawings, and elevations.

For example, Portland’s deck permitting requirements distinguish between these drawings. The site plan identifies the deck’s location on the property, structural plans describe its construction, and elevations show its height.

At Get a Site Plan, we prepare non-certified site plans for deck permits showing proposed deck locations, dimensions, approximate property lines, and setbacks.

Our plans are prepared online, generally without a site visit, with delivery options starting at 6–24 hours. The local authority determines whether a non-certified plan is acceptable. Structural engineering drawings or a licensed survey may be required separately.

If your property belongs to a homeowners association, you might also need a site plan for HOA approval before construction.

Does Building a Deck Increase Home Value?

A properly designed and maintained deck can add resale value, although homeowners shouldn’t expect to recover every dollar spent.

According to Zonda’s 2025 Cost vs. Value Report, the national averages for two common deck additions were:

Project	Average Job Cost	Estimated Resale Value Added	Cost Recouped
Wood deck addition	$18,263	$17,323	94.9%
Composite deck addition	$25,096	$22,199	88.5%

These are 2025 benchmark figures from Zonda, not 2026 construction quotes or guaranteed resale returns.

The findings suggest that homeowners shouldn’t automatically choose the most expensive material expecting the highest percentage return.

Deck size, condition, local climate, neighborhood expectations, and buyer preferences all influence resale value.

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