Installing EnduraFlood Chair Rail - Tutorial 150

Oct 22, 2022
2 min read

Updated: Mar 28

In this tutorial, we’ll discuss how to install RAILI-HOLD/12 and CHAIR-RAIL to half-inch drywall with inside and outside corners. RAILI-HOLD is available for 1/2" and for 5/8" drywall. The difference is specified via the last two digits of the product number: 12 for 1/2" drywall, and 58 for 5/8" drywall. The installation steps are the same.

Installer attaching EnduraFlood rail hold trim to exposed wall studs during chair rail installation

We always start with RAILI-HOLD/12 and staple it to wooden studs. Even though not shown here, RAILI-HOLD/12 can also be mounted to metal studs using UNI-RIV.

We then install the panels as always and finish the bottom of the wall with UNI-BASE.

For more information about this step, see our tutorial video 110: Basic Installation on a Straight Wall

Hands sliding EnduraFlood chair rail trim onto mounted rail hold for a snug fit

To install the CHAIR-RAIL, note how it is built to fit snugly over our RAILI-HOLD. Simply slide it in place from the top. To finish the installation, many customers decide to caulk the CHAIR-RAIL as shown here. EnduraFlood is designed so that you can still remove the boards later if needed.

Let’s demonstrate this on an actual piece of two-by-four wall.

Inside corner installation of EnduraFlood chair rail trim on a demonstration wall frame

To install the CHAIR-RAIL on inside corners, miter cut your RAILI-HOLD so that both corner pieces can slide all the way into the corner.

We install our wall panels using VERTI-COR/I for the separation between the panels.

Then we miter cut our-CHAIR RAIL pieces and slide them snugly onto the RAILI-HOLD/12 and into the corner. As always, we finish the wall using UNI-BASE as baseboard trim.

Installer assembling an outside corner using EnduraFlood rail hold trim on wall studs

To build an outside corner, start by using RAILI-COR/12-O and staple it to your studs. We then continue along the wall using RAILI-HOLD/12.

Now, we mount our wall panels using VERTI-COR/O for the separation between the panels and install UNI-BASE.

Mitered EnduraFlood chair rail trim piece prepared for fitting over wall panel edge

Before mounting the CHAIR-RAIL/A, miter cut the edges and carve out a notch so it fits comfortably over the edge of the VERTI-COR/O. Slide the CHAIR-RAIL pieces into place.