Abstract: A flooring system includes a first floor member having a through hole and includes a second floor member having a non-through hole which extends from the bottom side toward the top side of the second floor member. The second floor member is positioned above the first floor member with the non-through hole aligned with the through hole. A radially-expandable fastener (such as a rivet) extends through the through hole and into the non-through hole. A method for installing a flooring system includes obtaining a first floor member having a through hole, obtaining a second floor member, and positioning the second floor member above the first floor member. A non-through hole is created extending from its bottom side toward its top side. A radially-expandable fastener (such as a rivet) is installed in the first and second floor members. The radially-expandable fastener extends through the through hole and into the non-through hole.