The Joist Pocket Liner® was invented by a framer after he saw a homebuilder throw a metal joist hanger at a stem wall because the homebuilder had just received another call back for a floor squeak.

In 2000, JPL Enterprises bought the patent, obtained ICBO Building Code Approval and entered into a strategic partnership with Trus Joist, A Weyerhaeuser Business.  JPL Enterprises is headquartered in Boise, Idaho, the birthplace of the engineered products industry.