Abstract: A gate system for use with a gate opening which spans between two opposing ends includes an elongate sheet of flexible mesh fencing material spanning in a longitudinal direction between a first end and a second end thereof and which is wound onto a shaft coupled to the first end of the sheet. A housing rotatably supports the shaft therein such that the sheet of flexible mesh fencing material is arranged to be dispensed through an elongate dispensing slot in the housing to span the gate opening. Connectors on the housing and on the second end of the fencing allow selective mounting to appropriate mounts at opposing ends of the gate opening which remain engaged when the first end of the fencing material is wound onto the shaft sufficiently that the remainder of the fencing material spans under a prescribed tension across the gate opening.