How Much Would a 20×20 Deck Cost to Build?

Building a deck is one of the best ways to expand your living space and create an inviting outdoor area for gatherings, relaxation, or family time. If you’re planning a 20×20 deck, you’re likely wondering how much it will cost to bring your vision to life. The answer depends on several key factors, including materials, labor, design, and any additional features you choose to include.

Let’s break down the real costs and give you a clear understanding of what to expect before you start your project.

Average Cost to Build a 20×20 Deck

On average, a 20×20 deck (about 400 square feet) costs between $8,000 and $24,000, depending on the materials and complexity of the build. That works out to roughly $20–$60 per square foot. The wide range in pricing exists because of variations in material quality, labor rates, and design preferences.

A simple pressure-treated wood deck may fall at the lower end of that range, while a composite or hardwood deck with railings and stairs can reach the higher end. Labor costs also vary depending on the experience of your contractor and the region you live in.

Material Choices and Their Impact on Price

The material you choose plays the biggest role in the overall cost of your deck. Here’s a quick look at some common options:

• Pressure-Treated Lumber: This is the most affordable material, averaging $15–$25 per square foot installed. It’s durable and easy to maintain but may require staining or sealing every few years.

• Cedar or Redwood: These natural woods offer beauty and resistance to insects, costing around $25–$35 per square foot.

• Composite Decking: A popular choice for its low maintenance, composite decks range between $35–$60 per square foot. Brands like Trex and TimberTech offer durable options that resist fading and rot.

• PVC Decking: Fully synthetic and weather-resistant, this premium choice can cost up to $70 per square foot but lasts for decades with little upkeep.

When deciding, think about your long-term plans. Spending more upfront for a low-maintenance deck might save you money in repairs and upkeep later.

Labor and Installation Costs

Labor usually makes up about 50% of your total deck budget. A straightforward design on level ground costs less, while multi-level decks, custom railings, or built-in seating increase costs. Some homeowners save on expenses by handling basic tasks like staining or cleaning, but professional installation ensures safety, stability, and proper building code compliance.

If your current deck needs fixing before you start a rebuild or extension, you might look into a Deck Repair Service in Milford MA to assess the condition and provide a detailed cost estimate before upgrading to a larger structure. Regular inspections and timely repairs can also extend the life of your deck.

Permits, Design, and Added Features

Before construction, check your local building codes and permit requirements. Most areas require a building permit for decks above a certain height or size, which can cost $100 to $500. You may also need to account for design services if you want a unique layout or custom finishes.

Additional features also add to the cost:

• Stairs: $15–$30 per step

• Railings: $40–$100 per linear foot

• Built-in seating or lighting: $500–$2,000 depending on design

• Skirting or lattice: $2–$10 per square foot

While these extras raise the total price, they enhance the appearance and usability of your outdoor space.

Why Professional Help Matters

When investing in a deck, quality workmanship and durable materials make all the difference. That’s why many homeowners trust Apollon Construction Inc, a well-known name in home improvement and exterior remodeling. Known for their attention to detail, reliable service, and experienced builders, they’ve earned a strong reputation for creating outdoor spaces that last. Whether it’s a new deck installation or a complete renovation, they focus on delivering results that blend function and design beautifully.

How to Save on Deck Building Costs

If you’re working within a set budget, here are a few practical tips to manage costs without compromising quality:

1. Simplify the Design: Straight lines and standard shapes are cheaper to build than curves or multi-level layouts.

2. Choose Materials Wisely: Pressure-treated wood can be a great start if you’re open to regular maintenance.

3. Do Some Work Yourself: Simple tasks like staining, painting, or cleaning can reduce labor expenses.

4. Compare Multiple Quotes: Always get at least three professional estimates to understand the market rate in your area.

By planning ahead and balancing your choices, you can achieve a great-looking deck that fits your budget.

Regional Variations in Deck Costs

Deck prices vary depending on where you live. In urban areas or regions with higher labor costs, you might pay more per square foot compared to rural locations. Weather also influences pricing — areas with harsh winters or humid climates often require stronger materials and more durable finishes.

If you live nearby and your current deck is showing signs of wear, consider reaching out for a Deck Repair Service in Milford MA to restore or upgrade your existing structure. Repairing damage early can prevent higher costs later and keep your deck safe and attractive.

Final Thoughts

Building a 20×20 deck is a valuable investment that enhances both your home’s beauty and functionality. While costs vary based on materials, labor, and design, thoughtful planning helps you stay within budget and get the best return on your investment. Whether you choose a simple wooden design or a modern composite deck, proper construction ensures durability and long-term satisfaction.

Working with experienced professionals like Apollon Construction Inc gives you peace of mind knowing your project is handled with expertise and care. With their experience and dedication, you can enjoy a strong, stylish deck built to last for years.