How To Use Concrete Deck Blocks

If you’re planning to build a deck for your outdoor space, you might be wondering what type of foundation to use. One option that’s gaining popularity is using concrete deck blocks, which are precast concrete blocks that provide a sturdy base for your deck without the need for digging and pouring footings. They’re also a more cost-effective and less labor-intensive alternative to traditional deck footings. In this post, we’ll walk you through how to use concrete deck blocks to build a strong and durable deck foundation, and discuss the pros and cons of this method. So, let’s dive in!

Understanding the Basics: What Are Concrete Deck Blocks and Why Use Them for Deck Foundations?

When building a deck, it’s essential to understand the basics of what concrete deck blocks are and why they’re a good option for deck foundations. Deck blocks are concrete footings with an anchor to hold a beam in place, providing stability to your deck. Using deck blocks eliminates the need for digging a hole for a traditional concrete footing, which can be a labor-intensive task. It’s important to check your local building code to ensure you’re building to the proper standards. The weight of the deck and lateral forces must also be considered when selecting how many deck blocks you’ll need to use. Deck blocks can be found at most home and garden stores and are available in several types depending on the weight capacity you require. Using deck blocks also allows for the flexibility of placing your deck exactly where you want it.

Step-by-Step Guide: How to Use Concrete Deck Blocks for Your DIY Deck Project

Building a deck is an exciting process, but it requires a lot of planning and proper execution. One important aspect of building a deck is installing the deck post, which requires a strong foundation. Deck blocks are a good idea to use when building a deck around the house, especially ground-level decks. These precast concrete blocks are designed to support the weight of the deck, making them a great foundation for your new deck. The use of deck blocks eliminates the need to pour concrete, which can be time-consuming and costly. Before installing the blocks, it is essential to prepare the area by leveling the ground, which depends on the size of the deck.

Once the area is prepared, dig a hole at each corner of the deck and place the deck blocks at the bottom of the hole. Make sure that the base of the post is in contact with the block to provide a physical connection between the post and the block. Use a level to ensure that the blocks are even, and then support your deck with the posts. With the use of precast deck blocks, building a deck is a straightforward and affordable way to increase the value and beauty of your home.

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Comparing Your Options: Concrete Deck Blocks vs. Pier Blocks for Deck Foundations

When building a deck, you have a couple of options for its foundation. One option is using a concrete pier while the other one is using deck blocks. Deck blocks may seem more convenient as they do not require you to pour the concrete or use wood deck posts. However, it is crucial to consider the pros and cons of using pier blocks for your deck foundation. The height of the pier can cause structural damage if not executed properly. For typical decks, deck blocks are best as they provide a stable base and can support the weight of the structure. Deck blocks are precast concrete blocks that are ready to build and can save you time and effort. While pier blocks will cost significantly more than deck blocks, they are still a viable option if you need to build things higher. Considering the benefits and drawbacks of each option, it is important to choose the type of foundation that fits best with your project’s needs.

Pros and Cons of Using Deck Blocks for Your DIY Deck Project: Is It the Right Choice for Footing?

If you’re considering a floating deck for your DIY project, deck blocks can be a good option for footing. However, there are pros and cons to keep in mind. The weight of your deck will determine whether deck blocks can be used to support the deck. If you’re using them to support a small deck, then they might be the right choice for you. Additionally, deck blocks provide an easy and convenient way to build something without using topsoil to create a foundation for your deck. One major concern with deck blocks is the frost line – if you want to build a deck in an area prone to frost, you will need to dig deep into the ground to create a stable foundation. Although deck blocks come in a variety of sizes and styles, they can still be costly.

One advantage of using deck blocks is their ability to support a deck around a tree. Unlike concentrated loads, the weight of a good deck can be dispersed more evenly over the surface area of the deck blocks. That being said, if you’re unsure if deck blocks will work for your project, it might be a good idea to consult with professional deck builders. Keep in mind that while deck blocks look similar to other types of foundation, they must be used to support decks and not other structures. Finally, it is important to note that deck blocks require the use of additional materials and tools to build your deck.

Making Sure Your Deck is Safe and Stable: How Many Concrete Deck Blocks Do You Need to Use?

Ensuring the safety and stability of your deck is essential to avoid any potential accidents. One way to achieve this is by using deck blocks. These are designed to provide support for your deck, but how many should you use? Firstly, it is important to note that using deck blocks is a good idea as they provide a sturdy foundation for your deck. Secondly, the number of blocks required will depend on the dimensions of your deck as well as certain factors such as the weight of furniture and foot traffic. It is important to keep the deck level as well, which can be achieved by using the correct number of blocks. The cost of deck blocks varies depending on the material used, but it is a worthwhile investment to ensure the stability and safety of your deck. Lastly, it is imperative to follow the manufacturer’s guidelines regarding the number of blocks needed as insufficient support can cause sagging and instability.


In conclusion, using concrete deck blocks can be a good idea for supporting your deck. When placed correctly, a deck block can support the weight of your deck and keep it level. Although the cost of deck blocks may vary, they are generally an affordable option for those who want to DIY their deck foundation. However, it is important to note that the blocks must be placed on a stable and level surface to ensure proper support. By following the right steps and taking the necessary precautions, you can use concrete deck blocks to create a sturdy and long-lasting foundation for your deck.

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