How to Build a Deck with Pressure-Treated Lumber: A Step-by-Step Guide from Cardinal Home Center

Building a deck is a rewarding project that can transform your backyard into the ultimate outdoor space. Pressure-treated lumber is the go-to material for durability, resistance to moisture, and long-lasting performance. At Cardinal Home Center, we carry everything you need to get your deck built right, from quality tools to high-performance materials. Whether tackling this project yourself or with a friend’s help, here’s a step-by-step guide to building your deck with pressure-treated lumber using the best tools and products Cardinal offers.

Materials You’ll Need

• Pressure-treated lumber (framing, decking, and railings)
• Deck screws (for wood) or galvanized nails
• Concrete deck blocks or anchors
• Wood sealant or stain (transparent, semi-transparent, or opaque)
• Power drill/screwdriver
• Circular saw or miter saw
• Tape measure
• Level
• Carpenter’s square
• Hammer
• String and stakes
• Safety goggles and work gloves

Step 1: Plan and Design Your Deck

Before you start building, take some time to design your deck. Think about the size, layout, and any additional features such as stairs, railings, or built-in seating. Sketch out your plan to make sure everything fits and is to scale.

• Check Local Codes: Before you start, check with local building authorities to ensure your design complies with local codes and regulations. This might include required deck height, railing specifications, and necessary permits.
• Location: Choose a level area for your deck. If your ground is uneven, you might need to adjust your foundation to ensure the deck is stable.

Step 2: Prepare the Site

Now, it’s time to prepare your site. Clear the grass, weeds, and debris area, and level the ground if needed. Use stakes and string to outline the perimeter of your deck.

• Install Deck Blocks or Footings: Concrete Deck Blocks are perfect for smaller, ground-level decks. For raised decks, use concrete footings and posts. For stability, you’ll want the posts to be set about 24 to 36 inches deep.

Step 3: Build the Frame

The frame is the skeleton of your deck, so it’s essential to get it right.

• Attach the Ledger Board: If you’re attaching the deck to your house, secure a pressure-treated ledger board to the house using Simpson Strong-Tie Lag Bolts. Make sure it’s level and firmly attached.
• Build the Outer Frame: Lay out your pressure-treated lumber and cut it to size. Secure the frame with decking screws. Use a level to ensure the frame is level and a Carpenter’s Square to keep the corners square.
• Add Support Beams: Add support beams at regular intervals (typically every 16 to 24 inches) for raised decks. A Framing Square is essential for keeping these beams square and level.

Step 4: Install the Decking Boards

Once your frame is set, it’s time to lay down the decking boards.

• Lay the Decking Boards: Start at one end and work your way across. Use Spacers to create consistent gaps between the boards. These gaps will help drainage and allow the wood to expand and contract naturally.
• Secure the Decking: Use decking screws to secure each board to the frame. For best results, drill pilot holes first to prevent splitting. If you need to make any cuts, a Circular Saw will give you clean, accurate cuts.
• Cut to Fit: If necessary, use your saw to trim the last row of decking to fit perfectly. Remember to measure twice and cut once!

Step 5: Build the Railings (Optional)

If you plan to add railings, now’s the time to build and install them.

• Install Posts: Place your railing posts at the corners and along the edges of the deck. Use Simpson Strong-Tie Post Anchors to secure them to the frame, ensuring they’re plumb and level.
• Attach the Rails: Use your Circular Saw to measure and cut your horizontal railing boards. Secure it with vertical balusters between the rails for a more finished look.

Step 6: Finish the Deck

Pressure-treated wood is built to last, but applying a sealant or stain can help it withstand the elements and preserve its appearance.

• Seal or Stain the Wood: Cardinal carries a wide variety of stains and sealants from Benjamin Moore. These products provide an extra layer of protection against UV rays, moisture, and wear.
• Inspect and Maintain: After completing your deck, check regularly for any loose boards, screws, or nails. At Cardinal Home Center, we also carry wood cleaners to keep your deck looking great.

Final Thoughts

Building a deck with pressure-treated lumber is a big project, but it’s worth it when you’re relaxing in your new outdoor space. With the right tools, materials, and a little elbow grease, you’ll create a deck that lasts for years to come. At Cardinal Home Center, we’ve got everything you need to get the job done—from high-quality lumber to the best tools on the market. Stop by your local store, and our experts will help you find exactly what you need to make your deck-building project successful!