Flooring system

A flooring panel, comprising:

• an interlocking joint having a first side defining a first mating portion along the first side and a second side defining a second mating portion along the second side, said second side disposed opposite said first side;
• the first mating portion having a substantially arcuate groove formed therein and extending along at least a portion of the first side;
• a rotatable cam disposed in the groove extending in a longitudinal direction along at least a portion of the first side;
• the rotatable cam having a central portion, a first arm extending radially outwardly from the central portion along a first axis, a second arm extending radially outwardly from the central portion along a second axis, and a resilient third arm extending radially outwardly from the central portion along a third axis and disposed a distance from the second arm defined by a predetermined angle;
• the first arm having a lever portion and a curved portion, the curved portion extending substantially perpendicularly to the lever portion defining a substantially hook-shaped end;
• a lower lip extending outwardly from the first mating portion beyond the groove;
• said second mating portion having a tongue extending perpendicularly from said second side and extending along at least a portion of the second side and defining a substantially concave groove along an undersurface receiving said lower lip;
• said tongue having a substantially vertical face at least as long as the distance from the hook-shaped end of the first arm to the end of the second arm;
• said second mating portion further defining a locking groove formed therein above the tongue to receive the hook-shaped end of the first arm of the rotatable cam;
• and
• the second arm and the resilient third arm bendable towards each other to create a biasing force,
• wherein the biasing force impels the second arm toward the tongue such that as the tongue advances in a direction toward the first mating portion, the hook-shaped end of the first arm moves into a mating position with the locking groove, thus providing a tight locking connection.