Paul N. Gardner USA, worldwide distributors, producers, and designers of quality physical and inspection instruments for the paint, coatings, and related industries, introduces a new offering: the Depth Gauge. Used for measuring thickness of open and closed cell foam, the Depth Gauge allows commercial roofing contractors and spray polyurethane applicators to test the depth of the foam quickly and easily while being applied on a roof substrate. It is also designed for measuring the depth of fireproofing, spray fire resistive material, to ensure consistent depth from one area to another.

Constructed of sturdy plastic and weighing in at only one pound, this gauge can read depths up to 5¾ ".  It has an easily adjustable stainless-steel pin and easy to read numbers.


  • Measures the thickness of open and closed cell foam.
  • Used by roofing contractors, spray foam applicators, and inspectors to accurately measure the depth of spray foam to ensure consistent depth consistency.
  • Constructed with a plastic body and features a steel pin/probe on the end.
  • Reads depths to 5¾ " with easy-to-read display.

For more information, visit: