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Install Railings and Balusters

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

Showing 13:45–15:23 of the source video. Watch the full video with every moment.

What happens in this clip

Once the stair stringers are installed, begin constructing the railings. Secure 4x4 posts to the deck using two carriage bolts per post. Ensure the maximum span allowed between posts adheres to local codes. For the main deck section, run the rails on the inside of the posts and secure the balusters to the outside of the rails. For the stairs and landing, the rails were run flush between the posts, with balusters positioned between the top and bottom rails. When installing balusters (typically 2x2s), always pre-drill holes to prevent splitting, as they tend to be brittle. The maximum allowable gap between balusters in most places is 4 inches; a 2x4 (which is actually 3.5 inches wide) can be used as a spacer to ensure compliance. Note that the last baluster in a run might require a different gap due to layout, but you can calculate exact spacing for equal gaps if desired.

Goal: Install secure and code-compliant railings for safety and aesthetics

What's used

Tools

  • 2x2 Balusters
  • 2x4 Lumber
  • 4x4 Posts
  • Carriage Bolts
  • Chisel
  • Circular Saw Milwaukee (visible)
  • Power Drill Milwaukee (visible)
  • Rails (top and bottom)

About the full video

This project details the comprehensive process of building a second-story deck off a pole barn, covering everything from initial layout and code considerations to installing footings, framing, decking, stairs, and railings. The techniques shared are also applicable to single-story deck construction.

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 Railings and Balusters — Deck Stairs | Oak Valley Designs

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