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How to Secure a Flange

Published in Plumbing Installation 3 mins read

Securing a flange, specifically a toilet flange as described in the provided reference, involves fastening it to the subfloor and then securing the necessary bolts within the flange.

To properly secure a toilet flange to your subfloor and prepare it for toilet installation, follow these steps based on the provided information.

First, the flange itself must be anchored firmly to the floor surface. This ensures a stable connection for the toilet.

Securing the Flange to the Subfloor

The primary step is to attach the new flange directly to the subfloor. The method and type of hardware depend on what was supplied and the material of your subfloor.

  • Use the provided hardware that came with the flange, if available. This is the recommended first option as it is designed for the specific flange.
  • If no hardware was provided, you will need to select appropriate screws based on the subfloor material:
    • For a wood subfloor, use wood screws.
    • For a cement subfloor, use cement screws.

Here's a quick summary:

Subfloor Material Recommended Hardware (If not provided)
Wood Wood Screws
Cement Cement Screws

Using the correct screw type is crucial for a strong and lasting connection to the subfloor, preventing future leaks or instability.

Securing the Toilet Flange Bolts

Once the flange is securely fastened to the subfloor, the next step is to prepare it for mounting the toilet. This involves installing the bolts that the toilet will attach to.

  • Slide the toilet flange bolts into the designated slots or channels within the new flange. These bolts typically stand upright and are used to anchor the toilet base.
  • Secure them with washers and nuts. Once the bolts are in place, add a washer and then a nut onto each bolt from underneath (or within the flange's mechanism) to hold them firmly in position within the flange's structure. This prevents the bolts from moving while you are positioning and installing the toilet.

By securing the flange to the subfloor with appropriate fasteners and then properly installing and securing the toilet flange bolts within it, you create a stable and ready connection point for a toilet.

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