Undermount Sink Basins

Hate wasting your time cutting and gluing blocks of expensive foam panels together? Annoyed by the pile of wasted material when you’re done? Got crooked walls or a custom installation? Built With Foam undermount sinks are simply attached to the 2 inch thick countertop substrate of your choice by cutting a rectangle, and adhering our sink from the underside. Add waterproofing then tile or stone! You can have multiple basins, offset basins, and solve your jobsite problems by using the only undermount foam sink basin available.

Learn about our Undermount Sink product:

All products must be installed according to Built With Foam's installation instructions, ANSI specifications, and the current year’s TCNA handbook standards. All products installed in wet or exterior locations must be waterproofed. Each Built With Foam product is custom and made-to-order based on your specifications. Therefore, please double check your measurements before submitting them. We will also provide your written specifications in your receipt. If you notice an issue after submitting your order, please contact us as soon as possible at builtwithfoam@gmail.com.