Slidable gate, which comprises: - a first slidable panel, which is extended along a first extension direction between a first rear end and a first front end, and is slidable along a first sliding direction parallel to said first extension direction; - a second slidable panel, which is extended, between a second rear end and a second front end, along a second extension direction parallel to and side-by-side said first extension direction, and is slidable along a second sliding direction parallel to said second extension direction; - actuation means mechanically connected to said first slidable panel and actuatable for driving said first slidable panel to be moved parallel to said first sliding direction; - a transmission system placed to connect between said first slidable panel and said second slidable panel in order to transmit, to said second slidable panel, a rectilinear motion parallel to said second sliding direction in order to move said second slidable panel to be displaced parallel to said second sliding direction; wherein said actuation means and said transmission system are adapted to move said slidable panels (2, 3) between an open position, in which said slidable panels (2, 3) are side-by-side each other, and a closed position, in which said slidable panels (2, 3) are extended one after the other with the second rear end of said second slidable panel positioned at the first front end of said first slidable panel; wherein said transmission system comprises: - a fixed rack, which is extended according to a third extension direction parallel to said first extension direction and to said second extension direction, and is intended to be fixed to the ground; - a first toothed wheel, rotatably mounted on said first slidable panel and engaged with said fixed rack, in a manner such that said first toothed wheel is rotated by said fixed rack during the displacement of said first slidable panel along said first sliding direction; - motion transformation means, which are mechanically connected to said first toothed wheel and to said second slidable panel, and are arranged for receiving a rotary motion from said first toothed wheel and for transmitting said rectilinear motion to said second slidable panel in order to move said second slidable panel along said second sliding direction; said slidable gate being characterised in that said motion transformation means comprise: - a transmission rack fixed to said second slidable panel, extended parallel to said second extension direction and mechanically connected to said first toothed wheel; - a second toothed wheel, which is positioned at the first front end of said first slidable panel, is mechanically connected to said first toothed wheel in order to receive said rotary motion and is engaged with said transmission rack in order to move said transmission rack with said rectilinear motion. - a first slidable panel, which is extended along a first extension direction between a first rear end and a first front end, and is slidable along a first sliding direction parallel to said first extension direction; - a second slidable panel, which is extended, between a second rear end and a second front end, along a second extension direction parallel to and side-by-side said first extension direction, and is slidable along a second sliding direction parallel to said second extension direction; - actuation means mechanically connected to said first slidable panel and actuatable for driving said first slidable panel to be moved parallel to said first sliding direction; - a transmission system placed to connect between said first slidable panel and said second slidable panel in order to transmit, to said second slidable panel, a rectilinear motion parallel to said second sliding direction in order to move said second slidable panel to be displaced parallel to said second sliding direction; - a fixed rack, which is extended according to a third extension direction parallel to said first extension direction and to said second extension direction, and is intended to be fixed to the ground; - a first toothed wheel, rotatably mounted on said first slidable panel and engaged with said fixed rack, in a manner such that said first toothed wheel is rotated by said fixed rack during the displacement of said first slidable panel along said first sliding direction; - motion transformation means, which are mechanically connected to said first toothed wheel and to said second slidable panel, and are arranged for receiving a rotary motion from said first toothed wheel and for transmitting said rectilinear motion to said second slidable panel in order to move said second slidable panel along said second sliding direction; - a transmission rack fixed to said second slidable panel, extended parallel to said second extension direction and mechanically connected to said first toothed wheel; - a second toothed wheel, which is positioned at the first front end of said first slidable panel, is mechanically connected to said first toothed wheel in order to receive said rotary motion and is engaged with said transmission rack in order to move said transmission rack with said rectilinear motion.