The phrase "slab floor" refers to a solid, flat surface made of concrete or similar material that serves as the base for a building's foundation. Full definition
I created a heat loss model of the house and calculated the heat loss with no insulation and with various levels of insulation in the wall, ceiling and concrete slab floor perimeter. (builditsolar.com)
The carpet has been removed in favor of a bare concrete slab floor. (okcpetsmagazine.com)
I could not imagine my own 16 year old, who had died in my arms, leaving this world on a cold slab floor in a noisy shelter feeling unloved. (caringforaseniordog.com)