Install Balusters and Fillets
From Newel Post and Banister Tightening · Step 7 of 8 · Video by Menards Home Improvement

Showing 3:35–4:17 of the source video. Watch the full video with every moment.
What happens in this clip
Insert a baluster into a pre-drilled hole in the stair tread. Use a level to guide you and a pencil to mark the exact angle where the top of the baluster meets the bottom edge of the handrail. Cut each baluster to this marked angle, ensuring it is cut 1/16 inch longer to allow for a snug fit into the groove at the bottom of the handrail. Apply wood glue to the bottom of the baluster and insert it into the tread hole. Then, apply glue to the angled top of the baluster and nail it into place against the handrail using a nail gun and finishing nails. Repeat this process for all balusters. Finally, cut and secure the small fillet pieces, which fit under the handrail between each baluster, using glue and finishing nails. For straight sections of railing, ensure the handrail is cut to the correct length, bolts are installed into the newels, balusters are set, and then the handrail is installed. Clean up any excess glue with a damp cloth. Allow the entire railing system to set for 24 hours to ensure the glue dries completely and the structure is stable.
Goal: Complete the baluster installation and add fillet pieces for a finished look.
What's used
Tools
- Balusters Colonial Elegance
- Damp cloth
- Fillet pieces Colonial Elegance
- Finishing nails
- Handrail Colonial Elegance
- Level
- Miter saw
- Nail gun
- Pencil
Materials
- Wood glue
About the full video
This project provides a comprehensive, step-by-step guide for installing a new wooden stair railing system. It covers the entire process from initial measurement and planning to securing newel posts, cutting and attaching handrails, drilling and installing balusters, and adding finishing touches like fillet pieces, ensuring a secure and aesthetically pleasing result.
Step 7 of 8: Secure Loose Banister Balusters
Inspect each baluster (the vertical spindles supporting the handrail). If any are loose where they meet the tread or the handrail, apply wood glue into the gap and re-seat them firmly. For more secure connections, small brad nails or specialized baluster screws can be used from the underside.
Every video in Newel Post and Banister Tightening
Step 1: Assess Newel Post Stability
- 0:00–0:06 Assess Newel Post Stability
- 6:11–6:31 Verify Stability of Stair Post
- 0:43–0:58 Secure the Newel Post with Screws
Step 2: Inspect Banister Looseness
- 0:12–0:13 Verify Stability of the Handrail
- 0:11–0:30 Assess the Problem
- 0:15–0:17 Confirm Post Stability
Step 3: Tighten Base Screws (if applicable)
- 0:43–0:58 Secure the Newel Post with Screws
- 0:12–0:15 Tighten the Newel Post Fastener
Step 4: Reinforce Newel Post to Floor/Stringer
- 4:35–5:10 Secure Newel Post with Screw and Plug
- 4:06–4:31 Drive Structural Screws
- 0:29–0:41 Mount Newel Post to Floor
Step 5: Check and Tighten Banister/Handrail Connections
- 0:32–0:45 Install Handrails
- 5:13–5:40 Adjust Handrail Connection for Optimal Fit
- 2:00–2:24 Tighten Existing Fasteners
Step 6: Use Wood Shims and Adhesive for Gaps
- 0:34–0:52 Shim and Trim for Stability and Finish
- 2:13–2:31 Plumb and Secure the Newel Post Temporarily
- 0:35–0:46 Trim Shims and Install Base Trim
Step 7: Secure Loose Banister Balusters
- 6:47–8:49 Glue and Install the First Baluster
- 0:04–0:05 Position Baluster in Tread and Handrail
- 3:35–4:17 Install Balusters and Fillets (this video)
Step 8: Test for Stability
- 1:20–1:27 Verify Bannister Stability
- 0:12–0:13 Verify Stability of the Handrail
- 0:15–0:17 Confirm Post Stability
Questions about Newel Post and Banister Tightening
What are the most essential tools I'll need for this project, and are there any I might not have?
You'll definitely need a good screwdriver set and possibly a ratcheting wrench for any bolts. Wood screws, pine shims, and wood glue or epoxy are also critical materials. Tools like a brad nailer or pry bar can be useful for specific repairs or securing loose balusters, but might not be essential for every tightening job.
Is this project truly suitable for a beginner, and how much time should I set aside?
Yes, this project is rated as beginner difficulty. The main tasks involve assessment, tightening, and applying adhesives, which are straightforward. You should plan for approximately 3 hours to complete the job, allowing extra time for any glue or epoxy to properly cure.
My newel post feels tight at the base but still has some give. What could be the issue?
If the base screws are secure, the wobble might be originating from where the newel post connects to the banister or even from loose balusters. Thoroughly inspect all connecting points for gaps. Use wood shims with wood glue or epoxy to fill any voids, or consider adding reinforcement screws from less visible angles.
What are the common reasons a newel post or banister becomes loose, and how can I prevent it from happening again?
Looseness often occurs due to screws backing out over time from repeated movement, or wood shrinkage and expansion. Inadequate initial installation can also be a factor. To prevent recurrence, ensure all connections are securely fastened, use wood glue with shims in any detected gaps, and consider using longer or heavier-gauge screws where appropriate for better grip.
What are the most important safety precautions I should take when working on my newel post and banister?
Always ensure the staircase is stable enough to work on without risking a fall. Be careful of sharp edges or splinters when handling wood, and wear appropriate eye protection, especially when using tools like a utility knife or a brad nailer. Follow all manufacturer safety guidelines for any power tools used.
What if the wobble is in the banister itself, not the newel post?
For a loose banister, first check the connections where it attaches to the newel post and any wall mounts. Tighten any visible screws or bolts. If gaps persist, use wood shims and adhesive to stabilize the joints. Also, inspect all balusters; securing any loose balusters to both the banister and stair tread can significantly improve overall stability.
Newel Post and Banister Tightening
This project involves identifying the cause of a wobbly newel post and loose banister and then applying appropriate methods to secure them. This may include tightening screws, reinforcing connections, or using wood shims and adhesive.
Read the full guide Browse all guides
Planning this project? Shop Oak Valley Designs.

