Install Metal Balusters and Caulk

What happens in this clip

With the wooden elements painted and dry, begin installing the metal balusters. Insert the metal rods into the pre-drilled holes in the handrail and base. Ensure they are correctly oriented and spaced. Secure each metal baluster by drilling a pilot hole into the ends that meet the wood, then fastening them with screws. Use a level to ensure all balusters are plumb and properly aligned. Finally, apply a bead of caulk around the top and bottom where the metal balusters meet the wood, as well as around the base of the newel post, to seal any gaps and create a clean, finished look. Smooth the caulk with a wet finger or tool. Any caulk that gets on painted surfaces can be carefully wiped away or painted over for a seamless finish.

What's used

Tools

• Caulk Gun
• Drill
• Level

Materials

• Caulk/Sealant Liquid Nails Heavy Duty Construction Adhesive
• Metal Balusters Various
• Screws Various

About the full video

This project details the process of transforming a traditional wooden stair railing system by replacing old wooden balusters with a modern metal rod design. It involves carefully removing existing wooden balusters, preparing the wooden handrail and newel posts by filling imperfections with wood filler, constructing new wooden newel post sleeves, and finally installing and finishing the sleek new metal baluster system. The use of wood filler ensures a smooth, seamless base for painting the refreshed wooden elements.

Step 5 of 6: Install New Balusters

Apply a strong adhesive suitable for metal and wood to the ends of the wrought iron balusters, or use appropriate mounting brackets and screws as designed for the baluster system. Position each baluster in its designated spot on the railing and stair stringer, ensuring it is plumb (perfectly vertical). Hold in place until the adhesive sets or secure with fasteners. Repeat for all balusters, maintaining consistent spacing.

Open this step in the guide

Every video in Baluster Replacement

1. Step 1: Measure Existing Balusters

   • 0:49–2:09 Measure and Mark New Baluster (Using Existing Template)
   • 2:14–3:03 Size New Balusters
   • 0:24–0:40 Measure and Mark Baluster for Cutting

2. Step 2: Remove Existing Balusters

   • 0:16–0:29 Remove Old Wooden Balusters
   • 0:08–0:23 Remove Old Balusters and Clean Area
   • 1:31–3:50 Remove Old Balusters and Nails

3. Step 3: Prepare New Baluster Mounting Points

   • 0:17–1:26 Patch Old Baluster Holes

4. Step 4: Cut Wrought Iron Balusters

   • 0:07–0:08 Cut New Iron Balusters to Length
   • 4:17–5:02 Cut Your Balusters
   • 0:15–0:25 Remove Old Balusters & Cut New Baluster

5. Step 5: Install New Balusters

   • 3:41–5:00 Install Metal Balusters and Caulk (this video)
   • 0:06–0:08 Insert Balusters into Rails
   • 0:04–0:16 Install and Secure Iron Balusters

6. Step 6: Inspect and Finish

   • 6:38–7:50 Final Inspection and Cleanup
   • 0:16–0:27 Final Alignment and Quality Control
   • 0:18–0:26 Final Inspection and Cleanup