A load bearing floor mat for vehicle cargo compartments includes a pliable layer configured to overlie a defined area of a vehicle floor and also includes a rigid member that is associated with a portion of the pliable layer. The rigid member has a width that is sufficient to span a gap or opening in the vehicle floor, such as a spare tire well or other storage compartment. The rigid member renders the pliable layer substantially non-pliable above the opening such that the floor mat can support a load placed thereon.