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Install Railing Rails and Balusters

From Deck Stairs · Step 7 of 8 · Video by Third Coast Craftsman

Showing 12:17–14:26 of the source video. Watch the full video with every moment.

What happens in this clip

With the railing posts in place, you can now install the horizontal rails and balusters. Measure the distance between each set of railing posts. Cut 2x4 lumber to these lengths for the top and bottom rails. These rails will support the balusters. For consistent baluster spacing, you'll need to do a calculation. Measure the inside width between the railing posts. Add the thickness of one baluster to this measurement. Divide this sum by the minimum required baluster spacing (e.g., 4 inches) plus the thickness of one baluster. Round this result up to the nearest whole number to get the total number of balusters for that section. Then, divide the original inside width by the number of balusters to get the precise spacing. To easily maintain this spacing during installation, create a 'spacer' block from a scrap piece of wood, cut to the calculated spacing. Place the spacer between each baluster as you install them. Attach the balusters by counter-sinking a hole and adding a screw to both the top and bottom rails. Repeat this process for each railing section.

Goal: Complete the deck's safety railings

What's used

Tools

  • 2x4 Lumber Pressure Treated Lumber
  • Balusters Pressure Treated Lumber
  • Calculator
  • Circular Saw Skilsaw
  • Drill
  • Fraction Converter Chart/App
  • Pencil
  • Screws (exterior-grade)
  • Speed Square
  • Tape Measure

About the full video

This project provides a comprehensive guide to building a sturdy, ground-level wooden deck. It covers every stage from initial design and permitting, through foundation construction, framing, decking, and finishing touches like railings and stairs. The video emphasizes proper layout, adherence to local building codes, and efficient material handling for a successful DIY deck build.

Step 7 of 8: Install Railings

Install railing posts securely to the deck ledger board or directly to the stringers using appropriate hardware and connectors. Then, attach the top and bottom rails between the posts. Finally, install balusters vertically between the top and bottom rails, ensuring they are spaced according to local building codes (typically no more than 4 inches apart).

Open this step in the guide

Every video in Deck Stairs

  1. Step 1: Prepare the Stair Location

  2. Step 2: Mark Stringer Placement

  3. Step 3: Attach Stringers to Deck

  4. Step 4: Secure Stringers to Ground

  5. Step 5: Cut and Attach Risers (Optional)

  6. Step 6: Install Treads

  7. Step 7: Install Railings

  8. Step 8: Final Inspection and Finishing Touches

Questions about Deck Stairs

What tools and materials are essential for building deck stairs using pre-cut stringers?

You will need basic tools like a measuring tape, level, drill with drill bits, shovel, and rake for site preparation. Key materials include pre-cut pressure-treated pine stair stringers, gravel and concrete mix for securing the base, appropriate exterior structural lag screws, and decking boards for the treads. The specific list provided includes items like Anvil digging shovel, OX marking pencil, Empire plumb bob, Quikrete gravel, SAKRETE concrete mix, SPAX lag screws, and Composite Decking Boards.

What are the most critical safety precautions I should take when building deck stairs?

Safety is paramount for structural projects like deck stairs. Always wear appropriate personal protective equipment, including safety glasses, gloves, and sturdy footwear. Ensure all connections are secure and stable, especially where stringers attach to the deck and ground. Always follow manufacturer's instructions for materials and power tools, and verify stability at each step.

How can I ensure my deck stairs comply with local building codes?

Compliance with local building codes is crucial for safety and legality. Before starting, consult your local building department for requirements on rise, run, width, handrails, and foundation for deck stairs. These codes vary by location and are designed to prevent structural failure and ensure safe use. Hiring a licensed professional can help navigate these complex requirements.

What common mistakes should a beginner avoid when installing pre-cut stair stringers?

A common mistake is improper site preparation, leading to unstable ground support. Ensure the ground is level, well-compacted, and has adequate drainage using gravel and pavers. Another error is not securely attaching the stringers to both the deck and the ground, which can compromise the entire structure's stability. Always double-check measurements and use a plumb bob and level for accurate placement.

What is the estimated time commitment and difficulty for this deck stair project?

This project is rated as 'beginner' difficulty with an estimated time of 3 days. However, factors like your experience level, site conditions, and adherence to local codes can extend this. Breaking the project into manageable steps and having all tools and materials ready will help keep it on schedule.

Are there alternative materials or methods for securing deck stair stringers to the ground?

While the project suggests gravel, concrete mix, and pavers, alternative methods for ground support include concrete footings or pre-cast concrete piers. The chosen method depends on local frost lines, soil conditions, and building codes. Always ensure the ground connection is robust and prevents settlement or shifting over time.

Deck Stairs

This project outlines the process of building deck stairs using pre-cut stringers. It covers site preparation, attaching the stringers to the deck, securing them to the ground, and installing treads and railings. Safety is paramount throughout the process, and it's recommended to consult local building codes and consider hiring a professional for complex steps.

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Install Railing Rails and Balusters — Deck Stairs | Oak Valley Designs

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