Fixed-line trimmer heads for rotary trimmer devices and associated methods are provided. A fixed-line trimmer head for a rotary trimmer device includes a housing operatively attachable to the rotary trimmer device. The housing is rotatable when in use around a central axis of rotation and has a top surface extending outwardly from the central axis and facing upward when in use, a bottom surface extending outwardly from the central axis and facing the ground when in use, and a periphery connecting the top surface to the bottom surface. At least one line channel is defined within the housing of the trimmer head having an entrance recessed within the periphery and an exit disposed on one of the top and bottom surfaces, wherein the entrance and exit are each located an equal distance from the axis of rotation.
