How Much Does Composite Decking Cost? [2025 Data]

Composite decking costs vary from {{nationalAvgRangeMinCost}} for smaller installations to {{nationalMaxCost}} for large decks that require lots of prep work. Most homeowners spend an average of {{nationalAvgCost}} to install a new composite deck. 

Whether you’re hosting a barbecue over the summer or want to snuggle up on your outdoor furniture on a cool fall afternoon, having a composite deck can transform any drab yard into the perfect space for hosting gatherings. We’ve crunched the numbers to make it easier for you to budget for your new composite deck.

Composite Decking Cost Factors 

Several factors contribute to the cost of composite decking. These include the material type, deck size, optional add-ons, and the price of labor.

Type of Composite Decking

The three types of composite decking include mineral-based composite, polyvinyl chloride (PVC), and wood plastic. Each material can impact costs, with PVC at the lowest, mineral-based composite in the middle, and wood plastic at the top of the price range. Here’s a breakdown of each type to help you choose the option with the qualities and budget that fit your needs.

PVC Decking

PVC decking costs between $5 and $15 per square foot, slightly higher than wood-plastic composite decking boards. Also called vinyl decking, PVC boards contain only plastic materials, making them a long-lasting option for your deck. However, compared to composite wood plastic, PVC is more susceptible to expanding and contracting.

Mineral-Based Composite Decking

You'll pay between $6 and $15 per square foot for mineral-based composite decking, or polypropylene decking (poly decking). These boards are popular for docks thanks to their anti-slip properties. Poly decking is UV-resistant and newer to the market than other composite boards. It also comes in a variety of styles and shapes, like slotted boards that snap together for an easy installation. 

Wood Plastic Composite Decking

The average cost for wood-plastic composite decking materials ranges from $10 to $18 per square foot. This type of composite decking board contains recycled plastic combined with wood fibers to make it more durable, low-maintenance, and water-resistant than wood decking alone. The plastic reinforces the wood, making it less likely to crack or splinter compared to even the most tried and trusted woods, like cedar decking. 

This option has the highest price tag because the wood makes the composite decking look closer to hardwood than synthetic materials.

Size of Composite Decking

Composite decking costs anywhere from $15 to $32 per square foot. The materials cost $5 to $18 per square foot, with labor adding another $10 to $14 per square foot. For a standard 360-square-foot deck, you'll spend between $5,400 and $11,500, but prices can go for as little as $1,500 or upwards of $20,000 for large, custom decks.

Composite Pro Decking Costs 

To build your composite deck, a local deck company will typically charge between $10 and $14 per square foot, or between $3,600 and $5,000 in all for a 360-square-foot deck. If you need a pro to install stairs for your deck, this will cost around $25 per square foot. On top of your typical deck installation services, deck contractors may also offer other services, including:

• Gazebo construction: $5,200

• Patio installation: $4,000

• Pergola construction: $4,300

• Pool deck installation: $5,000

Additional Cost Factors

Other elements of your composite decking project, including demolition and prep work, permits, and additional materials, can influence the cost. 

Demolition and Prep 

Demolishing an old deck costs between $5 and $15 per square foot. If you have an existing deck that needs replacing, these additional costs can increase the price to anywhere from $20 to $47 per square foot. This amounts to a grand total of $7,200 to $17,000 for your average-sized deck. If you need to hire someone to haul away demolition debris, junk removal costs an average of $250. 

Permits 

Acquiring a deck permit costs between $225 and $500 depending on your location. Some municipalities don't require a permit for building a deck, while others do, so it's important to contact your local building department to see if you need to get a deck permit before starting the project. In many cases, a deck contractor will take care of acquiring the permit.

Additional Deck Materials

You may need other materials to complete your deck project—all of which can range from $3,800 to $8,300, or an extra $10 to $23 per square foot. Many of these materials can add up in cost, so here's a breakdown of each additional decking material by type for a 360-square-foot deck.

Why You Should Hire a Composite Decking Pro

Hiring a deck builder is the best way to ensure your composite deck repair goes according to plan. These experts ensure your repairs are completed safely and with durability in mind. With labor costs ranging from $10 to $14 per square foot, hiring these experts is a significant investment, but one you’ll be glad you made over the years of enjoying your repaired deck.

Here’s why it’s ideal to hire a composite decking pro

There are several reasons to hire an expert for your composite decking repair, such as:

• Avoiding material waste of composite decking

• Ensuring the foundation of your deck is safe and secure

• Help with complicated decks, such as decks surrounding a tree

• Access work guarantees and warranties

• Ensure code compliance

• Help securing building permits

• Lower rates on new materials

• Faster deck repairs than attempting to DIY

Composite Decking Repair vs. Replacement

If you have an existing composite deck, it can be tempting to repair it instead of replacing it entirely, but it’s important to conduct an inspection using our deck inspection checklist to determine its condition. You'll want to calculate whether demolition costs of $5 and $15 per square foot surpass replacement costs of $5 to $18 per square foot. 

The best way to determine whether it's best to replace or repair your deck is to calculate how much it will cost to repair your deck and see if it takes up 50% of the replacement cost. For example, a 360-square-foot deck costs between $1,800 and $5,400 to remove the old materials, $1,800 to $6,500 in new materials, and $3,600 to $5,000 in labor for a total of $7,200 to $16,900. You'll want to avoid repairing an old deck if it will cost more than $3,600 to $8,500.

How You Can Save Money While Installing Composite Decking

Making wise financial decisions can help you save for a rainy day. Try out these tips on how to save on the cost of installing composite decking:

1. Choose a smaller deck size, like a 12-by-12, over the standard 18-by-20-foot deck to lower material costs.

2. Go for PVC composite decking boards over wood plastic.

3. Demolish and dispose of your old deck yourself.

4. If possible, avoid unnecessary accessories like railings or stairs. However, this may not be an option if you’re looking for ways to make your backyard wheelchair accessible. 

How Angi Gets Its Cost Data

Home is the most important place on earth, which is why Angi has helped more than 150 million homeowners transform their houses into homes they adore. To help homeowners with their next project, Angi provides readers with the most accurate cost data and upholds strict editorial standards. We extensively research project costs to develop the pricing data you see, so you can make the best decisions for you and your home. We rely on reputable sources, including the U.S. Bureau of Labor Statistics, academic journals, market studies, and interviews with industry experts—all to ensure our prices reflect real-world projects. 

Want to help us improve our cost data? Send us a recent project quote to [email protected]. Quotes and personal information will not be shared publicly.