Abstract: A first description of a flooring system includes; a corrugated member containing metal and having ribs and valleys; a panel flooring member positioned over the ribs; and a fastener attaching the flooring member to one of the ribs. Each rib has a maximum transverse width of three inches, and each valley has a maximum top transverse width of three inches with such valley-to-rib width ratio having a range from 1.0 to 3.5. A second description of a flooring system includes a panel flooring member and a corrugated member similar to those of the first flooring system, but without the dimensional specifications of the ribs and valleys of the first flooring system, and includes a screw attaching the flooring member to the rib, wherein the screw has a pair of upper wings and a pair of lesser-protruding lower wings. Methods are disclosed for installing the described flooring systems.

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.

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.

Abstract: A mezzanine floor includes a corrugated metal base with tongue and groove panels secured thereto, wherein the panels have been finished with a number of steps to achieve a combination of desired features, including durability, cleanability, water resistance and non-skid characteristics. The finishing steps include coating and curing a polyester acrylic layer, followed by coating and semi-curing at least one more layer of acrylic with no polyester. Then, a final layer of acrylic is coated and all of the layers are cured via electron beam and then ultraviolet radiation. The viscosity of the acrylic is varied during the successive coatings, and this produces the textured finish necessary for non-skid characteristics. The tongue and groove configuration is offset to enhance stability at the joints between adjacent panels.