How To Use Concrete Deck Blocks

Are you looking to build a deck but don’t want to go through the hassle and expense of pouring a concrete foundation? Look no further than concrete deck blocks. These versatile blocks are a great option for DIYers and can save you time and money compared to traditional foundation methods.

Table of Contents

In this article, we will guide you through the process of using concrete deck blocks to build a sturdy and long-lasting deck. First, we will discuss the benefits of using concrete deck blocks and why they are a great option for your deck project. From there, we will help you choose the right materials and prepare the site for installation.

We’ll then guide you through the process of installing the first row of blocks and leveling them with a string line. Finally, we will cover how to build the deck frame and secure it to the blocks, as well as provide maintenance tips for ensuring the longevity of your new deck.

Let’s get started!

Benefits of Using Concrete Deck Blocks

You’ll love the ease and convenience of using these sturdy foundations for your outdoor oasis. Concrete deck blocks are a popular choice among homeowners and contractors for a variety of reasons.

Firstly, they’re incredibly easy to install, making them a great option for those who want to get their deck up and running quickly. Unlike traditional footings, concrete deck blocks don’t require any digging or excavation. This means you can save time and money on installation.

Another benefit of using concrete deck blocks is that they’re highly durable and long-lasting. Made from solid concrete, these blocks are designed to withstand the elements and can hold up to the weight of your deck and any furniture or accessories you may want to add. This means you can enjoy your outdoor space for years to come without having to worry about the foundation shifting or sinking.

Finally, concrete deck blocks are an affordable option for those who want to build a deck on a budget. Compared to other foundation options, such as poured concrete footings, concrete deck blocks are much less expensive and can help you save money on your overall project cost. Plus, their ease of installation means you can save even more by doing the installation yourself.

All in all, concrete deck blocks are a great choice for anyone looking to create a sturdy, long-lasting, and affordable foundation for their outdoor oasis.

Choosing the Right Materials

Picking out the perfect components is essential when it comes to ensuring a sturdy and reliable foundation for your outdoor space. This is especially true when it comes to choosing the right materials for your concrete deck blocks. Here are some important factors to consider:

  • Make sure that the deck blocks you choose can support the weight of your deck and any furniture or people on it. Check the weight limit specified by the manufacturer and choose blocks with a higher capacity than you need.
  • Outdoor spaces are exposed to the elements, so it’s important to choose materials that can withstand wind, rain, and sun exposure. Look for blocks made from durable materials like concrete or composite materials that won’t deteriorate over time.
  • If you’re planning to install the blocks yourself, make sure to choose ones that are easy to work with. Consider the weight and size of the blocks, as well as any special tools or equipment that may be required.

Once you’ve chosen the right materials for your concrete deck blocks, it’s important to follow the manufacturer’s instructions carefully. Proper installation is key to ensuring a safe and stable foundation for your outdoor space. Make sure to level the blocks, use the correct amount of gravel or sand, and secure your deck frame to the blocks using the recommended hardware. With the right materials and installation technique, you can enjoy your outdoor space for years to come.

Preparing the Site for Installation

Before getting started, make sure the ground is level and free of any debris, as this will ensure a stable foundation for your new outdoor space. Begin by removing any grass or vegetation from the area where you plan to install the concrete deck blocks.

Then, use a shovel or rake to level the ground as much as possible. If the ground is uneven, you may need to add some soil and compact it with a tamper until the surface is level.

Next, mark the spots where you will place the deck blocks. Use a measuring tape and a level to ensure that the spots are evenly spaced and aligned. Once you have marked the spots, you can start digging holes for the deck blocks.

The holes should be at least 6 inches deep and wide enough to accommodate the blocks. Make sure to remove any excess dirt and debris from the holes before installing the blocks.

After you have dug the holes, you can start installing the concrete deck blocks. Place each block into its respective hole, making sure it is level and stable. If the block is not level, you can adjust it by adding or removing soil underneath it.

Once all the blocks are in place, you can start building your deck or outdoor space on top of them. With proper preparation, your new outdoor space will be stable and durable for years to come.

Installing the First Row of Blocks

It’s time to lay down the foundation for your new outdoor space by installing the initial row of sturdy supports. Start by measuring and marking the perimeter of your deck.

Place the first deck block in the corner and use a level to ensure it’s level. Repeat this process for the next corner block. Once the corner blocks are level, connect them with a string line and add the remaining blocks in between.

To install the first row of blocks, dig a hole that’s deep enough to accommodate the block and ensure it’s level. Place the block in the hole and adjust the level as needed.

Once the first row is complete, double-check that it’s level and add any necessary adjustments. It’s important to make sure the foundation is level, as any unevenness can lead to an unstable deck.

After installing the first row of blocks, you can start building the deck frame on top of them. Remember to double-check the level as you build, and make any necessary adjustments before proceeding.

With a solid foundation in place, you can look forward to enjoying your outdoor space for years to come.

Leveling the Blocks with a String Line

Make sure to level each block with a string line before proceeding with the frame, as an uneven foundation can lead to instability in your new outdoor space.

To level the blocks, start by placing the first row of blocks in the position you want them to be in. Then, tie a string line tightly between two stakes at each end of the row, making sure the line is level.

Next, use a level to ensure that each block is even with the string line. Adjust the blocks as needed by adding or removing soil underneath them. It’s important to take your time with this step to ensure that each block is level and stable.

Once all the blocks are level, you can proceed with building the frame on top of them. Remember, an uneven foundation can cause your deck to shift and become unstable over time. Taking the time to level each block with a string line will ensure that your deck is built on a solid foundation, allowing you to enjoy your outdoor space for years to come.

Building the Deck Frame

Let’s start building the deck frame to create a sturdy and long-lasting outdoor space that you can enjoy for years to come. Begin by measuring and marking the locations for your deck posts. Make sure they’re evenly spaced and level.

Once you have your measurements, it’s time to start cutting your deck boards to size. Use a circular saw or handsaw to cut your boards to the correct length and width.

Next, place your cut deck boards onto the concrete deck blocks. Make sure they’re properly aligned and level. Then, attach your deck boards to the blocks using deck screws or nails. This will ensure that your deck frame is securely fastened to the blocks and won’t shift over time.

Finally, add finishing touches to your deck frame, such as railings or steps, to complete the look and functionality of your outdoor space.

With a little effort and attention to detail, you can create a beautiful and functional deck frame that’ll provide you with years of enjoyment. So go ahead and get started – your outdoor oasis awaits!

Securing the Deck to the Blocks

Now that you’ve successfully built the frame of your deck, it’s time to secure it to the concrete deck blocks. This is important to ensure that your deck stays in place and doesn’t shift or move over time.

To secure your deck to the blocks, you’ll need to follow a few steps. First, position your deck frame over the blocks, making sure it’s level and square. Then, use a drill to attach metal post brackets to the concrete blocks. These brackets will hold the wooden posts that support the deck frame.

Next, attach the wooden posts to the metal brackets using screws or bolts. Make sure the posts are securely fastened to the brackets and the frame is level. Once the posts are in place, you can attach the deck joists to them using metal joist hangers.

Finally, add the decking boards to the frame, making sure they’re evenly spaced and securely attached to the joists.

Congratulations, you’ve successfully secured your deck to the concrete deck blocks! Now you can sit back and enjoy your new outdoor space with peace of mind knowing it’s safe and sturdy.

Are you worried about your deck shifting or moving over time? Do you want to ensure your deck stays level and secure? Follow these steps to attach your deck frame to concrete deck blocks and enjoy a sturdy, long-lasting outdoor space.

Maintenance Tips for Longevity

To keep your outdoor space looking great for years to come, you’ll need to take care of it. Here are some maintenance tips for ensuring the longevity of your deck.

Firstly, it’s important to regularly clean your deck to prevent the buildup of dirt, debris, and mildew. Use a mild soap and water solution and a soft-bristled brush to scrub away any grime. Be sure to rinse thoroughly with a hose and allow the deck to dry completely before using it again.

Secondly, inspect your deck regularly to check for any signs of damage. Look for cracks, splinters, or loose boards. If you notice any issues, address them immediately before they become more serious. Small repairs can be done yourself with a hammer, nails, and wood filler. For larger repairs, it’s best to call in a professional.

Finally, protect your deck from the elements by applying a sealant or stain every few years. This will help to prevent water damage, fading, and discoloration. Make sure to choose a product that’s specifically formulated for use on outdoor wood surfaces and follow the manufacturer’s instructions for application.

With these simple maintenance tips, you can ensure that your concrete deck blocks and outdoor space look great for years to come.


Congratulations on successfully installing your new deck using concrete deck blocks! By following the steps outlined in this guide, you’ve ensured that your deck is built on a solid foundation and will stand the test of time.

Remember to regularly inspect and maintain your deck to keep it in top shape for years to come. This includes replacing any damaged or rotted boards, keeping the deck clean and free of debris, and applying a protective sealant every few years.

With proper care, your deck will provide a beautiful and functional outdoor living space for you and your family to enjoy for many seasons. Happy building!