flexible molding

[This is part of my ARCHWAY-101 series.]

Cutting the Flex Trim casing is not difficult, but it’s also not like cutting regular moldings.

You have to take care to make sure your Flex Trim is lying flat on your miter saw table, and that it’s oriented exactly right before you make your cut.

Installing the Flex Trim

Nailing flexible molding to a wall is kind of like nailing a live python to a wall. It tends to writhe a bit.

Disclaimer: I do not condone the nailing of pythons, alive or otherwise, to any wall in your home.

As usual, I did this entire installation solo. And the best advice I can give you for managing your Flex Trim by yourself — so that you nail it in place accurately — is to make a few practice runs.

I like to drape the casing over my shoulder while controlling the other end with both hands.

cutting moldings

Don’t forget that when you’re finished with your practice runs, to see how the material handles, you’ll have glue on the back side for the final installation. So practice accordingly.


Don’t forget to smear an even coat of glue on all contact surfaces, especially both mating faces of your miter joint, assuring a solid bond that will last for many years.

eyebrow arch

Above all, be patient.

Give yourself lots of time to work with the material in a way that leaves you with beautiful results.

And that’s all there is to it.

How to Build ARCHWAY-101 Series

1. How to Build ARCHWAY-101 Part 1: Gallery

2. How to Build ARCHWAY-101 Part 2: Materials Inventory

3. How to Build ARCHWAY-101 Part 3: How to Make the Pilaster Core

4. How to Build ARCHWAY-101 Part 4: Keystone Materials and Layout

5. How to Build ARCHWAY-101 Part 5: Installing the Flex Trim Legs

6. How to Build ARCHWAY-101 Part 6: Installing the Arched Casing

7. How to Build ARCHWAY-101 Part 7: Flex Trim Backband & Keystone

8. How to Build ARCHWAY-101 Part 8: Prep & Paint