How to Level Deck Posts

Are you planning to add a deck to your backyard? Leveling the deck posts is an essential step that ensures your structure is sturdy and safe. Here are some tips on how to level deck posts.

Creating a sturdy and level deck begins with the precise installation and leveling of the deck posts. These foundational elements are critical to the overall stability and longevity of your deck, ensuring that it can withstand the test of time and the elements. This guide will walk you through the essential steps of accurately measuring, cutting, and setting your deck posts to achieve a level surface. As a result, you can enjoy your deck for years to come without having to worry about any safety concerns or structural issues.

Whether you’re a seasoned builder or a DIY enthusiast, understanding these foundational principles is key to constructing a safe and enjoyable outdoor space.

What are the Benefits of Leveling Deck Posts?

Properly leveled deck posts offer several benefits, including:

• Ensuring the Structural Integrity of Your Deck: Leveling the posts ensures that they can support the weight of the deck and withstand external forces such as wind or heavy foot traffic.
• Creating a Level Surface: Uneven deck posts can result in an unstable and unsafe surface, making it difficult to walk on and causing potential tripping hazards.
• Preventing Water Damage: When deck posts are not leveled, water can pool in certain areas, leading to rot and decay over time. Leveling the posts helps prevent this issue and extends the lifespan of your deck.
• Enhancing the Appearance of Your Deck: A level deck not only looks better but also provides a smooth and seamless surface for furniture and other decorative elements.

These are just a few of the many benefits of properly leveling your deck posts. Now, let’s explore the steps to achieve a level surface.

What Will You Need?

Before you begin, make sure you have the following tools and materials:

• Level: This tool is essential for measuring and ensuring that your deck posts are perfectly vertical.
• Tape Measure: You’ll need this to accurately measure the height of each post.
• Miter Saw or Circular Saw: These tools will help you cut the posts to the correct height.
• Shovel: You’ll need this to dig the holes for the posts.
• Concrete Mix: This will be used to secure the posts in place.
• Water Level (Optional): This tool can help provide a more accurate measurement over longer distances, but it’s not necessary if you have a long level.

These are the basic tools and materials you’ll need, but depending on your specific deck design, you may require additional items.

10 Easy Steps on How to Level Deck Posts

Step 1. Plan Your Layout:

Start by sketching a layout of your deck, including where each post will be located. This plan is crucial for determining the number and placement of deck posts you will need. Use stakes and string to mark the positions in your backyard, ensuring that the spacing conforms to both your design and local building codes.\

Step 2. Dig the Post Holes:

Once your layout is marked and measured, it’s time to dig the holes for your deck posts. The depth of each hole should comply with local building codes, generally requiring that they extend below the frost line to prevent shifting during freeze-thaw cycles. Typically, a post hole should be about three times wider than the post width to ensure enough room for adjustments and concrete. Use your shovel to dig each hole to the correct depth and width, checking your measurements as you go to ensure accuracy.

Step 3. Set the Posts in Place:

With the holes dug, the next step is to place the posts into them. Before setting them in, ensure each post is of the correct length; it’s easier to make any necessary adjustments now than after they’re in the ground. Place a post in the center of the hole and use the level to check that it’s straight on two adjacent sides.

For this step, it’s helpful to have an extra pair of hands to hold the post while you make adjustments. Once you’re satisfied that the post is level, temporarily brace it with wooden stakes and screws to maintain its position while you pour the concrete.

Step 4. Pour the Concrete:

Mix the concrete according to the manufacturer’s instructions. Pour the concrete into the hole around the post, filling it to just below ground level. It’s important to do this gradually, periodically using the level to ensure the post remains straight as you go. Once the hole is filled, tap the sides of the hole with a shovel to remove any air pockets in the concrete. Allow the concrete to set according to the time specified by the product you’re using, which is usually at least 24-48 hours.

Step 5. Check the Level of Each Post:

After the concrete has been set and the posts are firmly in place, use a level to recheck the verticality of each post. It’s crucial to ensure that every post is perfectly upright to prevent any issues with the decking material laying flat or fitting properly.

If any adjustments are needed, now is the time to make those fine tunings. For posts that are slightly off, you can use shims or adjust the bracing. Once all the posts are confirmed to be level, you can proceed with the decking construction with confidence that your foundation is solid.

Step 6. Attach the Beam to the Posts:

The next step is attaching the horizontal beams to the vertical posts. These beams will support the decking boards. Measure and cut your beams to the necessary length, ensuring that they are straight and free of any significant warping or defects.

Position the beams on top of the posts, checking that they are level before securing them. Use heavy-duty bolts or screws designed for outdoor use to fasten the beams to the posts. These connections must be strong and secure, as they will bear a significant portion of the deck’s weight.

Step 7. Install the Joists:

After the beams are securely attached, the next step is to install the joists. These horizontal pieces provide the foundation for the deck boards and must be evenly spaced and perfectly level. Start by measuring and marking the intended placement for each joist along the beams.

The spacing between joists typically ranges from 12 to 16 inches on center, depending on the type of decking material being used and its weight capacity. Cut each joist to the appropriate length, ensuring a snug fit between the beams. Use joist hangers and outdoor-rated hardware to attach the joists to the beams, double-checking their level and alignment as you work. Proper installation of the joists is critical for creating a stable and level deck surface.

Step 8. Lay the Decking Boards:

Begin laying the decking boards perpendicular to the joists. Start from the edge of the deck closest to the house, ensuring the first board is straight and aligned with the edge of the house or the deck’s frame. It’s important to leave a small gap between each board (about 1/8 inch) to allow for expansion and drainage.

Secure each board to the joists using decking screws or hidden fasteners, depending on your preference and the aesthetic you wish to achieve. Work your way across the deck, cutting boards as necessary to fit the remaining space on the opposite side of the deck. Always double-check that boards are level and flush as you go, making any necessary adjustments to keep the surface smooth and even.

Step 9. Apply a Protective Finish:

The final step in constructing your deck is to protect it with a suitable finish. This not only enhances the appearance of your wood but also extends its life by defending against moisture, UV rays, and wear from use. Choose a high-quality sealant, stain, or paint designed for outdoor decks.

Before applying, ensure your decking is clean and dry. Apply the finish according to the manufacturer’s instructions, using brushes or rollers designed for the type of product you are using. For best results, apply two coats, allowing adequate drying time between each coat as recommended. Regular maintenance, including cleaning and reapplying finish as necessary, will keep your deck looking great for years to come.

Step 10. Regular Maintenance:

Maintaining your deck is crucial to ensuring its longevity and preserving its aesthetic appeal. Regular maintenance tasks include inspecting the deck for any signs of wear, such as loose boards or protruding nails, and making necessary repairs.

Cleaning the deck at least once a year with a deck cleaner or a mild soap solution can remove dirt, grime, and mildew buildup. It’s also important to reapply a protective finish every few years, depending on the finish type and the deck’s exposure to the elements. By adhering to a consistent maintenance schedule, you can enjoy your beautifully constructed deck for many years to come.

By following these steps, you can successfully construct a sturdy and visually appealing deck for your outdoor space. Remember to always prioritize safety by using appropriate tools and materials and following manufacturer instructions carefully.

5 Additional Tips and Tricks

1. Use a Laser Level: For precise alignment from post to post, consider investing in a laser level. This tool can project a perfectly straight line over a long distance, ensuring all your posts are aligned at the same height across the deck.
2. Adjustable Post Bases: These handy hardware items allow for minor adjustments to be made after the posts have been installed. If a post settles or shifts slightly, an adjustable post base can save you from having to remove and reinstall the post.
3. Temporary Bracing: Before finalizing the installation of your posts, use temporary wooden braces to hold them in the correct position. This allows for adjustments to be made easily before permanently setting the posts.
4. Check Diagonals for Square: When ensuring your deck is perfectly squared, measure the diagonals between opposite corners of the posts. If the two diagonal measurements are equal, your posts are squared off correctly. This is crucial for maintaining a level structure.
5. Water Level: For a low-tech but highly effective method, use a transparent hose filled with water to find the level across distant points. Since water seeks its own level naturally, this can help ensure your posts are even with each other, especially over uneven terrain where traditional levels may not be as effective.

With these additional tips and tricks, you can achieve a professional-level deck installation that will not only look great but also provide a safe and stable outdoor space.

5 Things You Should Avoid

1. Ignoring Local Building Codes: Always check your local building regulations before starting your project. Ignoring these can lead to fines or the need to redo your work according to code, impacting both time and budget.
2. Skipping the Planning Phase: Neglecting to properly plan the layout and spacing of your deck posts can result in a structurally unsound deck. Ensure you have a detailed plan before beginning installation.
3. Using Inferior Materials: Opting for cheaper, lower-quality materials may save money initially but can lead to deterioration and safety hazards in the future. Invest in high-quality, durable materials for your deck posts and framing.
4. Forgetting to Seal the Wood: Unsealed wood can absorb moisture, leading to warping, rot, and insect infestation. Always apply a high-quality sealant to your wooden deck posts to extend their lifespan and maintain the safety and appearance of your deck.
5. Overlooking Regular Maintenance: Once your deck is installed, it’s crucial to inspect it regularly for signs of wear or damage, especially in the areas surrounding the posts. Regular maintenance helps prevent small issues from becoming major problems.

By avoiding these common mistakes, you can ensure a successful and long-lasting deck post-installation.

Can Deck Posts Sit on Concrete?

Yes, deck posts can sit on concrete as long as they are properly installed and secured. This method is often used for ground-level decks or decks built on top of existing concrete surfaces. However, it’s important to note that the concrete must be able to support the weight of the deck and its occupants.

When installing deck posts on concrete, it’s crucial to use post anchors or post base connectors to secure the posts and distribute weight evenly. These can be attached using concrete screws or bolts, depending on the type of anchor used.

It’s also important to make sure the concrete surface is level and in good condition before installing deck posts. Any cracks or uneven areas should be addressed before installation to prevent future issues.

In addition, it’s recommended to use pressure-treated wood or other weather-resistant materials for deck posts when installing them on concrete to prevent rot or deterioration from moisture exposure.

Ultimately, with proper preparation and installation, deck posts can definitely sit on concrete and provide a stable base for your deck.  So, make sure to follow the necessary steps and precautions to ensure a safe and long-lasting installation.

What Cement to Use for Deck Posts?

When installing deck posts, it’s important to use the right type of cement to ensure a strong and stable foundation. The most commonly used cement for this purpose is concrete mix, which is a combination of cement, sand, and gravel or stone aggregate.

The concrete mix should be used for deck post footings as it provides a solid base that can withstand the weight and pressure of the deck. It’s also important to use a mix with a high compressive strength, typically at least 2500 psi, to ensure durability and longevity.

In addition, it’s crucial to properly prepare and compact the soil before pouring the concrete mix for the footings. This helps prevent settling and shifting of the posts in the future.

For added stability, some builders also recommend using a post-mix, which is a quick-setting concrete specifically designed for setting posts. This can be used in combination with the traditional concrete mix to ensure a strong and sturdy base for your deck posts.

Overall, it’s important to carefully consider the type of cement you use when installing deck posts to ensure they are properly supported and able to withstand the weight and pressure of your deck.

Conclusion

How to level deck posts is crucial for the structural integrity and aesthetics of your deck. By following the tips and avoiding common pitfalls outlined above, you can ensure your deck is both safe and visually appealing. Remember to always adhere to local building codes, choose high-quality materials, and take the time for thorough planning and precise installation.

Whether you’re securing posts on concrete or directly in the ground, the correct use of tools, materials, and techniques can make all the difference. Regular maintenance and inspections will also prolong the life of your deck, making your outdoor space enjoyable for years to come.

Achieving a level and stable deck requires attention to detail and a commitment to quality from start to finish.