How to Attach a Plinth to an Acrylic Tub

63" Rosalind Acrylic Pedestal Tub with plinth base

Pedestal tubs elevate any bathroom, both in style and in function. If you’re attaching the pedestal, or plinth, to your acrylic tub, follow these quick, easy steps for a seamless installation.

Tools & Materials

Adjustable Wrench
Silicone Sealant (100% Neutral Cure)
Damp Cloth

All other required materials are included with your pedestal tub.

How to attach a plinth to an acrylic tub tools & materials - adjustable wrench, silicone sealant, damp cloth

Plinth Installation

Step 1

Clean and dry the area of contact between the tub and plinth on both items.

Step 2

Remove hardware from bottom of tub if necessary (bolt caps, nuts, washers).

Step 3

Apply a bead of silicone sealant to the plinth along the area that will make contact with the tub.

Step 4

Firmly place the tub onto the plinth and wipe away any excess sealant with a damp cloth. Allow the silicone to dry for 24 hours.

Step 5

When the silicone is dry, carefully lay the tub and plinth upside down so that the bottom of the tub is facing up. Attach the mounting brackets.

Step 6

Tighten the bolts, alternating from one to another until all are secure.

Step 7

Carefully turn the tub back over to its upright position.

Important: Lift by the rim of the tub; never lift the tub by the plinth.

Step 8

Use plastic shims to make any necessary adjustments.

Step 9

A silicone bead can be added to the perimeter of the tub and plinth to disguise any gap that may be visible.