Abstract: A gate assembly is provided for positioning in an opening through which selective access is required in use. The gate assembly includes two or more gate panels movably mounted to each other via movement means to allow adjustment of the overall width of the gate assembly to allow fitting of said gate assembly in the opening in use. The movement means including protruding means provided on at least one of said gate panels which are slidably mounted in a slot or channel provided on the other of said gate panels. At least two spaced apart location means are associated with the slot or channel for receiving the protruding means, thereby providing at least two pre-defined width positions for said gate panels.