Secure All Treads and Joints

What happens in this clip

With all treads and stringer sections in place, conduct a thorough inspection. Apply wood glue to all contact surfaces between the treads and stringers, if not done during initial fastening, to enhance joint strength. Then, use the cordless drill/driver to drive additional wood screws into all joints, ensuring every tread is firmly attached to both the inner and outer stringers. This step is critical for the staircase's long-term stability and safety.

Goal: Ensure maximum structural integrity of the staircase

What's used

Tools

• Cordless Drill/Driver
• Ladder Werner

Materials

• Wood Glue
• Wood Screws

About the full video

This project details the step-by-step assembly of a pre-fabricated wooden spiral staircase kit. The process involves carefully positioning and securing curved plywood stringers, attaching pre-cut wooden treads, and reinforcing the entire structure with screws and glue. It culminates in the completed staircase being moved, ready for final installation.

Step 8 of 9: Reassemble Staircase Components

Carefully reattach all treads, balusters, and railing sections to the central pole and to each other. Ensure all connections are secure and that the staircase is stable. Tighten any bolts or screws as needed.

Open this step in the guide

Every video in How to Update a Spiral Staircase

1. Step 1: Assess Existing Staircase Condition

   • 1:02–1:35 Visually Inspect for Staircase Wear and Damage
   • 0:00–0:53 Assess Damage & Prepare for Repair
   • 0:15–0:30 Initial Inspection and Hazard Identification

2. Step 2: Clean and Degrease Components

   • 2:29–3:41 Prep Day: Cleaning and Sanding
   • 1:52–2:08 Scrape Loose Paint Flakes
   • 0:34–0:40 Mechanically Remove Loose Rust and Flaking Material

3. Step 3: Prepare Metal Surfaces for Finishing

   • 0:37–0:41 Sand the Staircase
   • 0:07–1:27 Sand and Prime the Staircase
   • 0:32–1:08 Clean, Sand, and Tape the Staircase

4. Step 4: Prepare Wood Treads for Finishing

   • 0:20–0:25 Sand and Finish Treads
   • 0:21–1:25 Prepare Treads (Sanding and Cleaning)
   • 2:06–2:52 Sand Stair Treads and Risers

5. Step 5: Apply Primer to Metal Components

   • 0:20–0:23 Apply Rust-Inhibiting Primer
   • 2:51–3:32 Apply Oil-Based Primer
   • 0:32–1:06 Apply Rust-Inhibiting Primer

6. Step 6: Apply Finish to Metal Components

   • 3:22–4:09 Paint Metal Frame (Top Coat)
   • 0:14–0:28 Apply Oil-Based Enamel Topcoat to Iron
   • 2:25–2:48 Apply Top Coat Paint

7. Step 7: Apply Finish to Wood Treads

   • 4:29–5:04 Stain New Stair Treads
   • 3:22–3:28 Stain & Seal Stair Treads
   • 3:41–4:00 Seal Stained Treads

8. Step 8: Reassemble Staircase Components

   • 0:47–0:50 Reinstall Metal Railing
   • 0:22–0:31 Secure All Treads and Joints (this video)
   • 13:30–15:00 Install Stair Treads with Mechanical Fasteners

9. Step 9: Final Inspection and Touch-ups

   • 1:08–1:37 Final Assembly and Inspection