A folding table comprising: a table top comprising a first portion and a second portion, the table top movable between a folded position and an unfolded position; a frame comprising a first portion connected to the first portion of the table top and a second portion connected to the second portion of the table top; a hinge assembly connecting the first portion of the frame and the second portion of the frame; a support structure (32, 34) movable between an extended position and a collapsed position relative to the first portion of the table top; a cross member disposed at least proximate a centre portion of the table top, the cross member movable between a first position and a second position; a cross brace (68, 70) coupled to the support structure (32, 34) and the cross member, the cross brace (68, 70) movable between an extended position and a collapsed position; a locking mechanism including a locked position in which the hinge assembly (58, 60) is secured in a fixed position and an unlocked position, the movement of the support structure (32, 34) between the extended and collapsed positions causing the locking mechanism to move between the locked and unlocked positions; and one or more gears rotationally connecting the cross member and the locking mechanism; wherein the movement of the support structure (32, 34) from the collapsed position to the extended position causes the cross brace (68, 70) to move from the collapsed position to the extended position; wherein the movement of the cross brace (68, 70) from the collapsed position to the extended position causes the cross member to move from the first position to the second position; wherein the movement of the cross member from the first position to the second position causes the locking mechanism to move from the unlocked position to the locked position; wherein rotation of the cross member between the first and second positions moves the locking mechanism between the locked and unlocked positions; and wherein the table top is secured in the unfolded position when the support structure (32, 34) is in the extended position and the locking mechanism is in the locked position. a table top comprising a first portion and a second portion, the table top movable between a folded position and an unfolded position; a frame comprising a first portion connected to the first portion of the table top and a second portion connected to the second portion of the table top; a hinge assembly connecting the first portion of the frame and the second portion of the frame; a support structure (32, 34) movable between an extended position and a collapsed position relative to the first portion of the table top; a cross member disposed at least proximate a centre portion of the table top, the cross member movable between a first position and a second position; a cross brace (68, 70) coupled to the support structure (32, 34) and the cross member, the cross brace (68, 70) movable between an extended position and a collapsed position; a locking mechanism including a locked position in which the hinge assembly (58, 60) is secured in a fixed position and an unlocked position, the movement of the support structure (32, 34) between the extended and collapsed positions causing the locking mechanism to move between the locked and unlocked positions; and one or more gears rotationally connecting the cross member and the locking mechanism; wherein the movement of the support structure (32, 34) from the collapsed position to the extended position causes the cross brace (68, 70) to move from the collapsed position to the extended position; wherein the movement of the cross brace (68, 70) from the collapsed position to the extended position causes the cross member to move from the first position to the second position; wherein the movement of the cross member from the first position to the second position causes the locking mechanism to move from the unlocked position to the locked position; wherein rotation of the cross member between the first and second positions moves the locking mechanism between the locked and unlocked positions; and wherein the table top is secured in the unfolded position when the support structure (32, 34) is in the extended position and the locking mechanism is in the locked position.