How to Build a Cheap Deck: Budget-Friendly DIY Ideas & Tips

Margaret Jul 01, 2026

Building a deck can significantly enhance your outdoor living space, providing a perfect spot for relaxation, entertainment, or dining. However, the cost of materials and labor can quickly add up. This guide will walk you through the process of building a cheap deck that's both functional and stylish.

a woman working on a deck with the words how i built a deck by my self for less than $ 500
a woman working on a deck with the words how i built a deck by my self for less than $ 500

Before you start, it's crucial to plan your deck carefully. Consider the size, shape, and location based on your needs and budget. Also, check local building codes and obtain any necessary permits to avoid potential issues down the line.

How to Build a Cheap Ground-Level Deck
How to Build a Cheap Ground-Level Deck

Designing Your Deck

To keep costs low, opt for a simple, rectangular or square deck design. Complex shapes and multiple levels can significantly increase the price. Also, consider using standard lumber sizes to minimize waste and reduce material costs.

How to Build a Low Deck on Budget
How to Build a Low Deck on Budget

Another way to save money is by designing the deck to be slightly above the ground. This eliminates the need for expensive footings and allows you to use adjustable legs or blocks to support the deck.

Choosing Affordable Materials

How to Build a Deck
How to Build a Deck

Selecting the right materials can significantly impact the overall cost of your deck. Pressure-treated lumber is an affordable option that's resistant to rot and insect damage. It's typically made from pine, which is less expensive than other woods like cedar or redwood.

For the decking boards, consider using 5/4x6 or 2x6 pressure-treated lumber. These sizes provide a sturdy, attractive surface at a reasonable price. You can also save money by using composite or PVC decking materials, which are more expensive upfront but require less maintenance in the long run.

DIY vs. Hiring a Professional

Building an "instant" deck with Concrete Deck Blocks. | Door Sixteen
Building an "instant" deck with Concrete Deck Blocks. | Door Sixteen

Building a deck yourself can save you a significant amount of money, but it's important to be honest about your skills and the time you can commit. If you're comfortable with basic carpentry and have some experience with power tools, you can likely tackle this project on your own.

However, if you're unsure about any aspect of the build, it's better to hire a professional. A poorly constructed deck can be dangerous and may need to be replaced sooner than expected, costing you more in the long run.

Building Your Deck

Cheap DIY Deck Build Stunning Ground Level Deck Under $300
Cheap DIY Deck Build Stunning Ground Level Deck Under $300

Once you have your design and materials, it's time to start building. Begin by laying out the deck's perimeter using stakes and string. This will help you ensure that the deck is square and that the measurements are accurate.

Next, build the frame of the deck using 2x8 or 2x10 pressure-treated lumber. Attach the frame to the support beams using galvanized nails or screws. Make sure the frame is level and square before attaching the decking boards.

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the ground level deck is being built with a wooden barrel on it and grass in front
the ground level deck is being built with a wooden barrel on it and grass in front
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Installing the Decking Boards

Start installing the decking boards at one corner of the deck, ensuring they're flush with the frame. Use spacers between each board to allow for expansion and contraction. Secure the boards with galvanized nails or screws, driving them at an angle for better holding power.

For a more finished look, you can install a fascia board around the perimeter of the deck. This also helps to hide the ends of the decking boards and provides a clean, professional appearance.

Adding Railings and Stairs

If your deck is more than 30 inches above the ground, you'll need to install railings for safety. You can find affordable railing kits at home improvement stores or build your own using pressure-treated lumber.

If your deck is elevated, you'll also need to build stairs. Again, keep the design simple to minimize costs. Use the same material as your decking boards for a cohesive look.

Building a cheap deck doesn't mean you have to sacrifice style or quality. With careful planning and the right materials, you can create an attractive, functional outdoor space that fits your budget. So, grab your tools and get started on your DIY deck project today!