A portable floor composed of a plurality of rectangular sections attached by hinges so that adjacent sections pivot between a rolled configuration for transportation and storage and a flat configuration to bear weight. A finger edge of the section has a plurality of spaced fingers with a beveled surface that extends from the bottom of the finger upwardly to the tip of the finger. The opposed notch edge of the section has a plurality of spaced notches with a beveled surface from the top of the section downwardly into the notch. The beveled surfaces are at an angle of 15° to 75°. The finger edge meshes with the notch edge of the adjacent section. Adjacent top surfaces are planar when the notch and finger beveled surfaces abut each other. The hinge is a pin extending through aligned holes in the fingers and cogs between the notches.