A floor marking tape has a structure that retains the adhesive under the tape to prevent the adhesive from being squeezed out from under the tape when the tape is in use on a floor. In one embodiment, the structure is a shoulder that defines a recess that holds the bulk of the adhesive. The shoulder prevents the adhesive from flowing out to the outer edge of the tape. The tape may have beveled edges that limit the unintentional lifting and delamination of the tape from the floor. The upper surface of the tape may be curved from edge-to-edge to limit dirt retention on the tape as well as allowing objects to slide over the tape.