Simpson Strong-Tie, manufacturer of structural connectors, prefabricated shearwall panels and other fastening systems, will donate $1 million in cash and products to Habitat for Humanity International over the next four years. The agreement also includes employee volunteer time through its many branch locations in the U.S. and Canada.

Simpson Strong-Tie President Terry Kingsfather said the company, based in Pleasanton, Calif., has donated money, time and products to Habitat since the mid-1990s. Its efforts have been primarily focused on a local level, supported by the company’s individual branches.

“Through its relationship with local Habitat affiliates, Simpson Strong-Tie has been making a difference in the lives of Habitat homeowners for some time,” said Mark Crozet, spokesman for Habitat for Humanity. “Together, we are building more affordable homes and offering more families the opportunity to fulfill their dreams of homeownership.”

Habitat for Humanity International is a nonprofit organization that has built more than 225,000 houses worldwide since 1976, providing simple, decent and affordable shelter for more than 1 million people.