Under-floor truck deck tie-down device and truck deck and truck having the same

A truck, comprising:

• an enclosed passenger compartment;
• and
• a rear compartment comprising a deck, the deck comprising:
• a floor that defines a cargo area on a top surface;
• a pocket disposed in the floor, the pocket defining a space disposed below the floor, and comprising an opening that opens below a bottom surface of the floor;
• and
• a tie-down device disposed in the pocket, the tie-down device comprising an attachment device, an adjustment device, and an elongated strap having an attachment end that is attached to the attachment device configured for attachment to a cargo and an adjustment end that is attached to the adjustment device, the attachment device and the strap extendable through the opening and below the bottom surface toward a rear end of the deck using the adjustment device, and the tie-down device configured to adjust the length of the strap and apply a downward tensioning force to the cargo.