How Much Does Composite Decking Cost in 2025?

This article was updated using automation technology and thoroughly reviewed for accuracy by HomeAdvisor Editor Ryan Noonan.

Composite or PVC decking offers a low-maintenance, durable option for extending your outdoor living space. On average, composite decking costs between $5,400 and $11,500, with most homeowners spending an average of $8,500. Factors like deck size, material type, labor, and additional features will influence the total cost. With thoughtful budgeting and the help of a professional, you can create a beautiful deck that adds value to your home and enhances your outdoor enjoyment.

Composite Decking Cost Factors

A 144-square-foot composite deck costs an average of $2,200 to $4,600, but your final price will hinge on deck size, material choice, prep work, and local labor rates.

Project Size

Deck size is one of the biggest cost drivers. Expect to spend $15 to $32 per square foot, depending on how much space you want to cover. A 100-square-foot deck might cost as little as $1,500 to install, while a 400-square-foot deck can cost up to $12,800.

Materials

Materials alone run $5 to $18 per square foot, with the exact number tied to the type of composite you pick.

Labor

Labor adds another $10 to $14 per square foot, while stairs average $25 per square foot. Here are the pros you’ll likely hire:

• Carpenters: Responsible for framing and construction

• Deck builders: Specialize in deck installation

Labor costs may vary based on your region and current market rates.

Demolition and Prep

Replacing an old deck? Plan on an extra $5 to $15 per square foot to tear out and haul away the existing structure. 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. While tackling the demolition yourself can save money, it requires time and effort.

Permits

A deck permit costs between $225 and $500, depending on where you live. Many areas require permits for deck construction to ensure safety standards are met. Working with a professional contractor can simplify this process—they'll handle the paperwork and make sure everything is up to code.

Additional Components

Keep in mind that the decking boards are just one part of the overall cost. You'll also need to budget for railings, substructures, posts, and hardware. Here’s how these costs break down.

Ongoing Maintenance

Composite decks are popular because they are low maintenance, especially compared to natural wood decks. Just sweep it and hose it down as needed. Otherwise, you won’t need to worry about composite deck maintenance costs, saving you time and money in the long run.

Does Composite Decking Increase Home Value?

Absolutely, installing a composite deck can significantly boost your home's value. On average, deck additions recoup 82.9% of their cost, or $14,600, when it’s time to sell. A composite deck doesn't just expand your living space; it also appeals to potential buyers seeking low-maintenance, durable outdoor areas.

Composite decks resist rot, fading, and warping, so future owners won't have to worry about costly repairs. By enhancing your home's functionality and curb appeal, a well-designed composite deck makes your property stand out and can even help it sell faster.

Budgeting for Composite Decking

Looking to build your dream deck without breaking the bank? Here are some smart strategies to help you save money without sacrificing quality:

• Stick to standard sizes: To reduce material and labor costs, opt for a standard deck size instead of custom dimensions.

• DIY demolition: If you're replacing an old deck, handling the demolition and disposal yourself can cut down on labor fees.

• Limit the extras: Keep your design simple by avoiding unnecessary add-ons like extra railings, elaborate stairs, or complex layouts.

• Shop around: Get quotes from at least three local deck builders to find the most competitive price.

• Choose the right timing: Schedule your installation during the off-season when contractors may offer reduced labor rates.

• Select budget-friendly materials: Pick cost-effective decking materials that still provide durability and low maintenance.

DIY vs. Hiring a Composite Decking Pro

Without the right skills, you might run into challenges like cutting boards to precise lengths, ensuring a level foundation, or navigating obstacles like trees and uneven terrain. Mistakes can be costly and may affect your deck's safety and longevity.

Hiring a professional composite deck builder ensures your deck is installed correctly and complies with local codes. While it adds $10 to $14 per square foot in labor costs, you'll benefit from their expertise, efficient work, and often a warranty on their craftsmanship. In the long run, a pro can save you time and prevent potential headaches, giving you peace of mind and a beautiful deck that stands the test of time.

How HomeAdvisor Gets Its Cost Data

No place is more important than your home, which is why HomeAdvisor connects homeowners with local pros to transform their houses into homes they love. To help homeowners prepare for their next project, HomeAdvisor provides readers with accurate cost data and follows strict editorial guidelines. After a project is complete, we survey real customers about the costs to develop the pricing data you see, so you can make the best decisions for you and your home. We pair this data with research from 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.