Size New Balusters
From Stair Baluster Repair · Step 3 of 5 · Video by The Honest Carpenter

Showing 2:14–3:03 of the source video. Watch the full video with every moment.
What happens in this clip
The new baluster needs to be the same length as the existing ones. In this case, the store-bought balusters are already 42 inches, matching the existing ones, so no cutting is required. If your new balusters are too long, measure an existing baluster from top to bottom. Use a miter saw or a circular saw to cut the new baluster to the correct length, ensuring to preserve any miter cut on the bottom end and make a square cut at the top. The new balusters in the video have a mitered detail on the bottom end and a square cut on the top.
Step 3 of 5: Prepare New Baluster
Measure the length of the old baluster or the gap it occupied. Cut the new baluster to the exact size using a miter saw or handsaw. If the baluster has decorative elements or specific end profiles (e.g., tenons), replicate these on the new one using appropriate woodworking tools. Sand any rough edges smooth.
Every video in Stair Baluster Repair
Step 1: Assess Baluster Damage
- 0:35–1:43 Inspect and Remove Damaged Balusters
- 0:08–0:36 Assess Railing Damage
- 0:05–0:16 Assess Damage
Step 2: Remove Broken Baluster
- 0:35–1:43 Inspect and Remove Damaged Balusters
- 0:16–0:29 Remove Old Wooden Balusters
- 0:08–0:23 Remove Old Balusters and Clean Area
Step 3: Prepare New Baluster
- 0:49–2:09 Measure and Mark New Baluster (Using Existing Template)
- 0:49–3:02 Cut and Prime New Baluster Components
- 2:14–3:03 Size New Balusters (this video)
Step 4: Install New Baluster
- 8:50–9:34 Complete Baluster Installation
- 2:26–3:15 Cut and Install Balusters with Glue and Nails
- 6:47–8:49 Glue and Install the First Baluster
Step 5: Finish and Reinforce
- 2:55–3:48 Fill and Smooth the Joint with Spackle
Questions about Stair Baluster Repair
Do I really need a miter saw for this project, or are there alternatives if I don't own one?
While a miter saw provides precise cuts for the baluster, you might be able to get a new baluster pre-cut to size at a hardware store. Alternatively, a handsaw with a miter box could work for smaller adjustments, but ensure clean, accurate cuts for a secure fit. Always wear appropriate safety gear when cutting.
What are the most important safety precautions I should take when repairing a stair baluster?
The primary safety concern is ensuring the staircase remains stable during and after the repair. Always wear eye protection when using tools like pry bars or saws to avoid injury from flying debris. Be mindful of splinters when handling wood and ensure the new baluster is securely fastened to prevent future accidents.
What is a common mistake beginners make when installing a new baluster, and how can I avoid it?
A frequent error is incorrect measurement, leading to a loose or too-tight fit. Measure multiple times, ensuring the new baluster fits snugly but without forcing it, which could damage the handrail or tread. Also, make sure to use adequate construction adhesive and fasteners to properly secure the baluster for long-term safety and stability.
The project is listed as "beginner" and "3 hours." What if it takes longer, or I encounter unexpected issues?
The 3-hour estimate is for straightforward replacements. It might take longer if you encounter hidden damage, struggle with removing the old baluster, or need to make precise cuts. Take your time with each step, especially measurements and securing the new baluster, to ensure a safe and lasting repair. If the structural integrity of the staircase seems compromised, consider consulting a professional.
How can I ensure the new baluster matches the existing ones, especially in terms of style and finish?
To ensure a good match, select a new baluster that has the same dimensions and style as your existing ones, such as the 5015 tapered wood baluster specified. If your existing balusters are painted or stained, you'll need to prime and finish the new baluster to blend seamlessly. Bring a piece of the old baluster to the store for comparison if possible.
After installation, what steps can I take to ensure the new baluster is well-reinforced and won't break again soon?
Beyond just friction-fitting, use construction adhesive and appropriate screws or nails to secure both ends of the baluster firmly to the handrail and tread. Regularly check the stability of all balusters on your staircase, as a single broken one can indicate overall wear. Proper finishing also protects the wood from environmental damage and prolongs its lifespan.
Stair Baluster Repair
This project outlines the steps for repairing or replacing a broken stair baluster, ensuring the safety and aesthetic integrity of your staircase.
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