powered by

Shim and Trim for Stability and Finish

From Newel Post and Banister Tightening · Step 6 of 8 · Video by Quality Wooden Stairs

Showing 0:34–0:52 of the source video.

What happens in this clip

Once the newel post is plumb, insert wooden shims into any gaps around the base between the post and the flooring. Gently tap the shims with a hammer until they provide a snug fit, ensuring the post is perfectly stable and preventing any rocking. Then, use a utility knife to carefully trim the excess shim material flush with the post's base and the flooring surface.

Goal: Stabilize the newel post and clean up the base with shims.

What's used

Tools

  • Hammer
  • Utility Knife

Materials

  • Wooden Shims

About the full video

This project details the step-by-step process of installing a newel post, which is a critical vertical support for stair railings. It covers precise marking, securing the post with fasteners and adhesive, ensuring plumb and stable alignment using shims, and achieving a clean, finished look by trimming and sealing.

Step 6 of 8: Use Wood Shims and Adhesive for Gaps

If there are small gaps between the newel post and the floor/stringer, or between the banister and its supports, insert thin wood shims into these gaps. Apply wood glue to the shims before insertion for a more permanent bond. Trim any excess shim material flush with the surface.

Open this step in the guide

Other videos for this step

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.

powered by